# Elsevier

# European Journal of Operational Research

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**Current editor:**Jesus Artalejo

**Current editor:**Jean-Charles. Billaut

**Current editor:**Robert Dyson

**Current editor:**Lorenzo Peccati

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**Series handle:**repec:eee:ejores

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### 1999, Volume 118, Issue 1

**164-180 Algorithms for a multi-level network optimization problem***by*Cruz, F. R. B. & Smith, J. MacGregor & Mateus, G. R.**181-193 Analysis of nonpreemptive priority queues with multiple servers and two priority classes***by*Kao, Edward P. C. & Wilson, Sandra D.**194-212 Derivation of the N-step interdeparture time distribution in GI/G/1 queueing systems***by*Luh, Hsing

### 1999, Volume 117, Issue 3

**415-428 Investment and capacity choice under uncertain demand***by*Dangl, Thomas**429-449 On the generalizability of advertising pulsation monopoly results to an oligopoly***by*Mesak, Hani I.**450-469 Efficiency based production planning and control models***by*Krishna Kumar, C. & Sinha, Bani K.**470-484 Variance of the output as a function of time: Production line dynamics***by*Tan, Bar[iota]s**485-510 Solving fuzzy solid transportation problems by an evolutionary algorithm based parametric approach***by*Jimenez, F. & Verdegay, J. L.**511-521 Probabilistic local search algorithms for concave cost transportation network problems***by*Yan, Shangyao & Luo, So-Chang**522-532 A gamma heuristic for the p-median problem***by*Rosing, K. E. & ReVelle, C. S. & Schilling, D. A.**533-552 Routing heuristics for automated pick and place machines***by*Ahmadi, Reza H. & Mamer, John W.**553-564 On the convergence of multiobjective evolutionary algorithms***by*Hanne, Thomas**565-577 Using cutting planes in an interactive reference point approach for multiobjective integer linear programming problems***by*Alves, Maria Joao & Climaco, Joao**578-590 Decentralized method for computing Pareto solutions in multiparty negotiations***by*Heiskanen, Pirja**591-605 Resource levelling for projects with schedule-dependent time windows***by*Neumann, K. & Zimmermann, J.**606-617 Renewal reward processes with fuzzy rewards and their applications to T-age replacement policies***by*Popova, Elmira & Wu, Hsien-Chung

### 1999, Volume 117, Issue 2

**199-210 The value of combining forecasts in inventory management - a case study in banking***by*Chan, Chi Kin & Kingsman, Brian G. & Wong, H.**211-221 Inventory control under speculation: Myopic heuristics and exact procedures***by*Gavirneni, Srinagesh & Morton, Thomas E.**222-238 Optimal stopping problem with recall cost***by*Kang, Byung-Kook**239-252 Maximizing a concave function over the efficient or weakly-efficient set***by*Horst, Reiner & Thoai, Nguyen V.**253-263 On the flexibility of constraint programming models: From single to multiple time windows for the traveling salesman problem***by*Pesant, Gilles & Gendreau, Michel & Potvin, Jean-Yves & Rousseau, Jean-Marc**264-274 The dynamic multilevel assignment problem as a stochastic extremal process***by*Tadei, Roberto & Ricciardi, Nicoletta**275-292 A global optimization method for nonconvex separable programming problems***by*Li, Han-Lin & Yu, Chian-Son**293-309 A dynamic approach to multiple-objective resource allocation problem***by*Lai, K. K. & Li, Lushu**310-325 Determination of optimal path under approach and exit constraints***by*Khan, W. A. & Hayhurst, D. R. & Cannings, C.**326-339 A comparison of parametric and non-parametric distance functions: With application to European railways***by*Coelli, Tim & Perelman, Sergio**340-354 House of quality: A fuzzy logic-based requirements analysis***by*Temponi, Cecilia & Yen, John & Amos Tiao, W.**355-367 Scheduling preemptive jobs with precedence constraints on parallel machines***by*Djellab, Khaled**368-381 A genetic algorithm solution for one-dimensional bundled stock cutting***by*Wagner, Bret J.**382-395 Production, inventory, and pricing under cost and demand learning effects***by*Jorgensen, Steffen & Kort, Peter M. & Zaccour, Georges**396-413 Optimal stochastic single-machine-tardiness scheduling by stochastic branch-and-bound***by*Gutjahr, W. J. & Hellmayr, A. & Pflug, G. Ch.

### 1999, Volume 117, Issue 1

**1-14 Fiber-to-object assignment heuristics***by*Sourd, Francis & Chretienne, Philippe**15-29 Routing and capacity assignment in backbone communication networks under time varying traffic conditions***by*Amiri, Ali & Pirkul, Hasan**30-44 On design of a survivable network architecture for dynamic routing: Optimal solution strategy and an efficient heuristic***by*Ouveysi, Iradj & Wirth, Andrew**45-62 "Value" of additional information in multicriterion analysis under uncertainty***by*Azondekon, Sebastien H. & Martel, Jean-Marc**63-83 Rough approximation of a preference relation by dominance relations***by*Greco, Salvatore & Matarazzo, Benedetto & Slowinski, Roman**84-99 Quantitative parametric connections between methods for generating noninferior solutions in multiobjective optimization***by*Li, Duan & Yang, Jian-Bo & Biswal, M. P.**100-112 Multiobjective transportation problem with interval cost, source and destination parameters***by*Das, S. K. & Goswami, A. & Alam, S. S.**113-124 An interactive fuzzy satisficing method for multiobjective nonconvex programming problems through floating point genetic algorithms***by*Sakawa, Masatoshi & Yauchi, Katsuhiro**125-135 Approximation methods for non-convex curves***by*Liu, Y. & Teo, K. L. & Yang, X. Q.**136-144 Accelerating the convergence of subgradient optimisation***by*Baker, Barrie M. & Sheasby, Janice**145-156 A concept of equilibrium for a game under uncertainty***by*Larbani, Moussa & Lebbah, Hocine**157-174 A heuristic to minimax absolute regret for linear programs with interval objective function coefficients***by*Mausser, Helmut E. & Laguna, Manuel**175-182 Solving the multiobjective possibilistic linear programming problem***by*Arenas Parra, M. & Bilbao Terol, A. & Rodriguez Uria, M. V.**183-196 Johri's general dual, the Lagrangian dual, and the surrogate dual***by*Nieuwenhuizen, Thorsten

### 1999, Volume 116, Issue 3

**461-476 Towards the qualitative, plan-based simulation of international crises***by*Balzer, Wolfgang & Sander, Jorg**477-486 On an approach to the modelling of problems connected with conflicting economic interests***by*Bajalinov, Erik B.**487-497 Eliciting and mapping qualitative preferences to numeric rankings in group decision making***by*Ngwenyama, Ojelanki K. & Bryson, Noel**498-507 Interactive group decision making procedure under incomplete information***by*Kim, Soung Hie & Ahn, Byeong Seok**508-529 An algorithm for systems welfare interactive goal programming modelling***by*Kalu, Timothy Ch. U.**530-544 Simulated annealing for discrete optimization with estimation***by*Alkhamis, Talal M. & Ahmed, Mohamed A. & Tuan, Vu Kim**545-564 An adaptive aggregation/disaggregation algorithm for hierarchical Markovian models***by*Buchholz, Peter**565-583 Aspirations and priorities in a three phase approach of a nonhomogeneous Markov system***by*Georgiou, A. C.**584-590 An application of Lemke's method to a class of Markov decision problems***by*Matsubayashi, Nobuo & Nishino, Hisakazu**591-606 Continuation method for nonlinear complementarity problems via normal maps***by*Chen, Bintong & Harker, Patrick T. & Pinar, Mustafa C.**607-614 New variants of finite criss-cross pivot algorithms for linear programming***by*Zhang, Shuzhong**615-628 Vector equilibrium problem and vector optimization***by*Goh, C. J. & Yang, X. Q.**629-639 An [var epsilon]-sensitivity analysis in the primal-dual interior point method***by*Kim, Woo-Je & Park, Chan-Kyoo & Park, Soondal**640-652 A mathematical programming approach to clusterwise regression model and its extensions***by*Lau, Kin-nam & Leung, Pui-lam & Tse, Ka-kit**653-666 Upper and lower approximation models in interval regression using regression quantile techniques***by*Lee, Haekwan & Tanaka, Hideo**667-680 Nonlinear integer programming for optimal allocation in stratified sampling***by*Bretthauer, Kurt M. & Ross, Anthony & Shetty, Bala**681-691 Student t-tests and compound tests to detect transients in simulated time series***by*Ockerman, Daniel H. & Goldsman, David

### 1999, Volume 116, Issue 2

**235-248 Cost optimal replacement of monotone, repairable systems***by*Sandve, Kjell & Aven, Terje**249-258 A multi-server queueing model with locking***by*Adan, Ivo & de Kok, Ton & Resing, Jacques**259-273 Optimal decision making in a maintenance service operation***by*Murthy, D. N. P. & Asgharizadeh, E.**274-280 Jointly optimal allocation of a repairman and optimal control of service rate for machine repairman problem***by*Frostig, Esther**281-290 A condition based maintenance model for a two-unit series system***by*Barbera, Fran & Schneider, Helmut & Watson, Ed**291-304 Manufacturer's pricing strategy and return policy for a single-period commodity***by*Lau, Hon-Shiang & Lau, Amy Hing-Ling**305-318 Pricing and lead time decisions for make-to-order firms with contingent orders***by*Easton, Fred F. & Moodie, Douglas R.**319-330 Transfer pricing and decentralized dynamic lot-sizing in multistage, multiproduct production processes***by*Pfeiffer, Thomas**331-351 Multi-echelon inventory control in divergent systems with shipping frequencies***by*van der Heijden, Matthieu C.**352-373 A perishable inventory model with positive order lead times***by*Williams, Craig L. & Patuwo, B. Eddy**374-388 Stock replenishment policies for a stochastic exponentially-declining demand process***by*Hill, Roger M. & Omar, Mohd & Smith, David K.**389-404 Determining optimal order splitting and reorder level for N-supplier inventory systems***by*Sedarage, Dayani & Fujiwara, Okitsugu & Trung Luong, Huynh**405-422 The infinite horizon non-stationary stochastic inventory problem: Near myopic policies and weak ergodicity***by*Iida, Tetsuo**423-435 Evaluating attack helicopters by AHP based on linguistic variable weight***by*Cheng, Ching-Hsue & Yang, Kuo-Lung & Hwang, Chia-Lung**436-442 Measuring aggregate process performance using AHP***by*Frei, Frances X. & Harker, Patrick T.**443-449 A consistency improving method in the analytic hierarchy process***by*Zeshui, Xu & Cuiping, Wei**450-456 A discussion on Extent Analysis Method and applications of fuzzy AHP***by*Zhu, Ke-Jun & Jing, Yu & Chang, Da-Yong

### 1999, Volume 116, Issue 1

**1-15 A fast interactive solution method for large capital expenditure selection problems***by*Tobin, Roger L.**16-32 Artificial neural networks in bankruptcy prediction: General framework and cross-validation analysis***by*Zhang, Guoqiang & Y. Hu, Michael & Eddy Patuwo, B. & C. Indro, Daniel**33-50 From stochastic dominance to mean-risk models: Semideviations as risk measures***by*Ogryczak, Wlodzimierz & Ruszczynski, Andrzej**51-68 A repeated matching heuristic for the single-source capacitated facility location problem***by*Ronnqvist, Mikael & Tragantalerngsak, Suda & Holt, John**69-79 Application of decision analysis techniques to the Weber facility location problem***by*Drezner, Zvi & Guyse, Jeffery**80-86 An exact algorithm for the fuzzy p-median problem***by*Canos, M. J. & Ivorra, C. & Liern, V.**87-99 A two-phase tabu search approach to the location routing problem***by*Tuzun, Dilek & Burke, Laura I.**100-117 Quantitative and qualitative indices for the plant layout evaluation problem***by*Lin, Lie Chien & Sharp, Gunter P.**118-138 Application of the integrated framework for the plant layout evaluation problem***by*Lin, Lie Chien & Sharp, Gunter P.**139-155 Failure rate distributions for flexible manufacturing systems: An empirical study***by*Vineyard, Michael & Amoako-Gyampah, Kwasi & Meredith, Jack R.**156-170 A comparative study of dispatching rules in dynamic flowshops and jobshops***by*Rajendran, Chandrasekharan & Holthaus, Oliver**171-182 An improved part grouping model for minimizing makespan in FMS***by*Mohamed, Zubair M. & Kumar, Ashok & Motwani, Jaideep**183-193 Minimizing the weighted number of tardy jobs and maximum tardiness in relocation problem with due date constraints***by*Lin, B. M. T. & Cheng, T. C. E.**194-204 Shortest-route formulation of mixed-model assembly line balancing problem***by*Erel, Erdal & Gokcen, Hadi**205-219 The permutation flow shop with buffers: A tabu search approach***by*Nowicki, Eugeniusz**220-232 A column generation based decomposition algorithm for a parallel machine just-in-time scheduling problem***by*Chen, Zhi-Long & Powell, Warren B.**233-234 Linear assignment procedures***by*Jonker, R. & Volgenant, A.

### 1999, Volume 115, Issue 3

**413-428 Data envelopment scenario analysis for setting targets to electricity generating plants***by*Athanassopoulos, Antreas D. & Lambroukos, Nikos & Seiford, Lawrence**429-448 A benchmark approach for baseball evaluation***by*Sueyoshi, Toshiyuki & Ohnishi, Kenji & Kinase, Youichi**449-458 Productivity and customer satisfaction in Swedish pharmacies: A DEA network model***by*Lothgren, Mickael & Tambour, Magnus**459-471 Estimating and bootstrapping Malmquist indices***by*Simar, Leopold & Wilson, Paul W.**472-487 Performance benchmarking using interactive data envelopment analysis***by*Post, Thierry & Spronk, Jaap**488-496 Optimization modeling for estimating and enhancing relative efficiency with application to industrial companies***by*Al-Shammari, Minwir**497-506 Measuring efficiency with quasiconcave production frontiers***by*Chang, Kuo-Ping**507-517 A multiple criteria approach to data envelopment analysis***by*Li, Xiao-Bai & Reeves, Gary R.**518-528 Data envelopment analysis with a single DMU: A graphic projected-gradient approach***by*Maital, Shlomo & Vaninsky, Alexander**529-541 Fuzzy scores of technical efficiency***by*Hougaard, Jens Leth**542-554 A statistical test for detecting influential observations in DEA***by*Pastor, Jesus T. & Ruiz, Jose L. & Sirvent, Inmaculada**555-563 Efficiency estimation and error decomposition in the stochastic frontier model: A Monte Carlo analysis***by*Ruggiero, John**564-582 DEA-discriminant analysis in the view of goal programming***by*Sueyoshi, Toshiyuki**583-595 Side effects of absolute weight bounds in DEA models***by*Podinovski, V. V.**596-607 An enhanced DEA Russell graph efficiency measure***by*Pastor, J. T. & Ruiz, J. L. & Sirvent, I.**608-615 Qualitative company performance evaluation: Linear discriminant analysis and neural network models***by*Bertels, K. & Jacques, J. M. & Neuberg, L. & Gatot, L.**616-623 Measuring efficiency by a single price system***by*Ballestero, Enrique**624-633 A process for generating quantitative belief functions***by*Bryson, Noel (Kweku-Muata) & Mobolurin, Ayodele

### 1999, Volume 115, Issue 2

**217-218 Editorial***by*Unknown**219-236 Integrated production/distribution planning in supply chains: An invited review***by*Erenguc, S. Selcuk & Simpson, N. C. & Vakharia, Asoo J.**237-253 Solving the medium newspaper production/distribution problem***by*Van Buer, Michael G. & Woodruff, David L. & Olson, Rick T.**254-269 An integrated inventory-transportation system with modified periodic policy for multiple products***by*Qu, Wendy W. & Bookbinder, James H. & Iyogun, Paul**270-284 Demand uncertainty and supplier's returns policies for a multi-store style-good retailer***by*Mantrala, Murali K. & Raman, Kalyan**285-299 Lagrangian-relaxation-based solution procedures for a multiproduct capacitated facility location problem with choice of facility type***by*Mazzola, Joseph B. & Neebe, Alan W.**300-313 Random lead times and expedited orders in (Q,r) inventory systems***by*Bookbinder, James H. & Cakanyildirim, Metin**314-327 Scheduling of resource tasks***by*Ecker, Klaus H.**328-338 Robustness of capacity rationing policies***by*Balakrishnan, Nagraj & Patterson, J. Wayne & Sridharan, V.**339-350 A combinatorial approach to the classification problem***by*Yanev, N. & Balev, S.**351-367 Making the information systems outsourcing decision: A transaction cost approach to analyzing outsourcing decision problems***by*Ngwenyama, Ojelanki K. & Bryson, Noel**368-379 Optimization models for recovery block schemes***by*Berman, Oded & Kumar, U. Dinesh**380-391 Minimising bins in transmission systems***by*Archibald, Thomas W. & Bokkers, Menno B. & Dekker, Rommert & Vliet, Andre van**392-412 Analysis of infinite servers polling systems with correlated input process and state dependent vacations***by*Lee, Thomas (Yew Sing)

### 1999, Volume 115, Issue 1

**1-18 Optimization of a large-scale scallop hanging culture operation***by*Pelot, R. P. & Cyrus, J. P.**19-35 Analysis of the twisting department at Superior Cable Corporation: A case study***by*Yingling, Jon C. & Goh, Chon-Huat & Ganguli, Rajive**36-46 Analysis of capacity management of the intensive care unit in a hospital***by*Kim, Seung-Chul & Horowitz, Ira & Young, Karl K. & Buckley, Thomas A.**47-58 Strategic options in re-engineering of a manufacturing system with uncertain completion time***by*Liu, John & Yao, Dongqing**59-76 A modeling approach to logistics in concurrent engineering***by*Dowlatshahi, Shad**77-97 Concurrent optimization in designing for logistics support***by*Hatch, Melanie L. & Badinelli, Ralph D.**98-112 Multicriteria models for the allocation of design parameter targets***by*Plante, Robert D.**113-137 Design of electronic assembly lines: An analytical framework and its application***by*Ahmadi, Reza H. & Kouvelis, Panagiotis**138-157 Job challenge as a motivator in a principal-agent setting***by*Radhakrishnan, Suresh & Ronen, Joshua**158-172 Modeling simultaneous worker learning and forgetting in dual resource constrained systems***by*Kher, Hemant V. & Malhotra, Manoj K. & Philipoom, Patrick R. & Fry, Timothy D.**173-178 Single-machine scheduling with learning considerations***by*Biskup, Dirk**179-194 Evaluation of three production planning procedures for the use of recipe flexibility***by*Bertrand, J. W. M. & Rutten, W. G. M. M.**195-214 An investigation of lead-time effects in manufacturing/remanufacturing systems under simple PUSH and PULL control strategies***by*van der Laan, Erwin & Salomon, Marc & Dekker, Rommert

### 1999, Volume 114, Issue 3

**447-464 A stochastic and dynamic model for the single-vehicle pick-up and delivery problem***by*Swihart, Michael R. & Papastavrou, Jason D.**465-473 Optimizing dead mileage in urban bus routes through a nondominated solution approach***by*Prakash, Satya & Balaji, B. V. & Tuteja, Deepak**474-488 An application of neurofuzzy modeling: The vehicle assignment problem***by*Vukadinovic, Katarina & Teodorovic, Dusan & Pavkovic, Goran**489-508 Submodularity and the traveling salesman problem***by*Herer, Yale T.**509-527 Weight distribution considerations in container loading***by*Davies, A. Paul & Bischoff, Eberhard E.**528-541 An exact algorithm for large multiple knapsack problems***by*Pisinger, David**542-556 An application of simulated annealing to the cutting stock problem***by*Faina, Loris**557-568 A sequential heuristic procedure for one-dimensional cutting***by*Gradisar, Miro & Kljajic, Miroljub & Resinovic, Gortan & Jesenko, Joze**569-579 An algorithm to perform a complete right-hand-side parametrical analysis for a 0-1-integer linear programming problem***by*Crema, Alejandro**580-588 Interactive fuzzy programming for multi-level 0-1 programming problems through genetic algorithms***by*Sakawa, Masatoshi & Nishizaki, Ichiro & Hitaka, Masatoshi**589-601 Optimization of neural networks: A comparative analysis of the genetic algorithm and simulated annealing***by*Sexton, Randall S. & Dorsey, Robert E. & Johnson, John D.**602-609 The sensitivity analysis of binary networks via simulation***by*Shih, Neng-Hui**610-625 A new analytical algorithm and generation of Gaussian quadrature formula for stochastic network***by*Fatemi Ghomi, S. M. T. & Hashemin, S. S.**626-637 Cognitive maps and fuzzy implications***by*Marchant, Thierry**638-656 CORO, a modeling and an algorithmic framework for oil supply, transformation and distribution optimization under uncertainty***by*Escudero, Laureano F. & Quintana, Francisco J. & Salmeron, Javier

### 1999, Volume 114, Issue 2

**219-233 Heuristic algorithms for the portfolio selection problem with minimum transaction lots***by*Mansini, Renata & Speranza, Maria Grazia**234-248 Using data envelopment analysis for costing bank products***by*Soteriou, Andreas C. & Zenios, Stavros A.**249-262 The simulation of option prices with application to LIFFE options on futures***by*Christodoulakis, George A. & Satchell, Stephen E.**263-280 Business failure prediction using rough sets***by*Dimitras, A. I. & Slowinski, R. & Susmaga, R. & Zopounidis, C.**281-293 Evaluating predictive performance of judgemental extrapolations from simulated currency series***by*Pollock, Andrew C. & Macaulay, Alex & Onkal-Atay, Dilek & Wilkie-Thomson, Mary E.**294-303 Some basic problems in inventory theory: The financial perspective***by*Luciano, Elisa & Peccati, Lorenzo**304-319 Variance vs downside risk: Is there really that much difference?***by*Grootveld, Henk & Hallerbach, Winfried**320-329 Optimal exit and valuation under demand uncertainty: A real options approach***by*Alvarez, Luis H. R.**330-337 Coordination of pricing and multi-period production for constant priced goods***by*Gilbert, Stephen M.**338-345 Price subsidies and guaranteed buys of a new technology***by*Jorgensen, Steffen & Zaccour, Georges**346-353 Comparing performance of feedforward neural nets and K-means for cluster-based market segmentation***by*Hruschka, Harald & Natter, Martin**354-362 Automatic clustering of business processes in business systems planning***by*Lee, Hsuan-Shih**363-371 Location of hubs in a competitive environment***by*Marianov, Vladimir & Serra, Daniel & ReVelle, Charles**372-379 Location of an undesirable facility in a polygonal region with forbidden zones***by*Munoz-Perez, Jose & Saameno-Rodriguez, Juan Jose**380-388 A geometrical solution for quadratic bicriteria location models***by*Ohsawa, Yoshiaki**389-394 A maxmin policy for bond management***by*Ghezzi, Luca Luigi**395-402 The cutting stock problem with mixed objectives: Two heuristics based on dynamic programming***by*Antonio, Julien & Chauvet, Fabrice & Chu, Chengbin & Proth, Jean-Marie**403-410 Complexity of parallel machine scheduling with processing-plus-wait due dates to minimize maximum absolute lateness***by*Cheng, T. C. Edwin & Kovalyov, Mikhail Y.**411-419 Bounds for the position of the smallest job in completion time variance minimization***by*Manna, D. K. & Prasad, V. Rajendra**420-429 Two-machine flowshop scheduling with availability constraints***by*Lee, Chung-Yee**430-436 An algorithm of global optimization for solving layout problems***by*Feng, Enmin & Wang, Xilu & Wang, Xiumei & Teng, Hongfei**437-445 Fast collision detection in four-dimensional space***by*Aliyu, M. D. S. & Al-Sultan, K. S.

### 1999, Volume 114, Issue 1

**1-14 Decision making using multiple models***by*Malhotra, Manoj K. & Sharma, Subhash & Nair, Satish S.**15-28 Multiple level production planning in rolling horizon assembly environments***by*Simpson, N. C.**29-37 On the global optimal solution to an integrated inventory system with general time varying demand, production and deterioration rates***by*Balkhi, Zaid T.**38-49 The multi-location inventory centralization problem with first-come, first-served allocation***by*Eynan, Amit**50-58 Balancing assembly lines effectively - A computational comparison***by*Scholl, Armin & Klein, Robert**59-71 Exploiting process plan flexibility in production scheduling: A multi-objective approach***by*Brandimarte, Paolo**72-82 A hierarchical approach for one-dimensional cutting stock problems in the steel industry that maximizes yield and minimizes overgrading***by*Vasko, Francis J. & Newhart, Dennis D. & Stott, Kenneth Jr.**83-92 A spreadsheet modelling approach to the assortment problem***by*Baker, Barrie M.**93-104 Capability indices for material balance accounting***by*Prasad, Sameer & Calis, Ayhan**105-114 Integer programming to schedule a hierarchical workforce with variable demands***by*Billionnet, Alain**115-126 Portfolio selection based on upper and lower exponential possibility distributions***by*Tanaka, Hideo & Guo, Peijun**127-140 Exact solution methods for uncapacitated location problems with convex transportation costs***by*Holmberg, Kaj**141-152 Genetic algorithm approach on multi-criteria minimum spanning tree problem***by*Zhou, Gengui & Gen, Mitsuo**153-164 Interval estimation of priorities in the AHP***by*Lipovetsky, Stan & Tishler, Asher**165-177 Lagrangean/surrogate relaxation for generalized assignment problems***by*Narciso, Marcelo G. & Lorena, Luiz Antonio N.**178-187 Technical efficiency and distance to a reverse convex set***by*Briec, W. & Lemaire, B.**188-197 The bilevel linear/linear fractional programming problem***by*Calvete, Herminia I. & Gale, Carmen**198-214 The finite criss-cross method for hyperbolic programming***by*Illes, Tibor & Szirmai, Akos & Terlaky, Tamas

### 1999, Volume 113, Issue 3

**501-527 Social theory and system dynamics practice***by*Lane, David C.**528-543 A heuristic algorithm for the symmetric and asymmetric vehicle routing problems with backhauls***by*Toth, Paolo & Vigo, Daniele**544-559 An exact algorithm for the capacitated facility location problems with single sourcing***by*Holmberg, Kaj & Ronnqvist, Mikael & Yuan, Di**560-567 Ranking of generalised multi-stage KANBAN policies***by*Axsater, Sven & Rosling, Kaj