# 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

**For corrections or technical questions regarding this series, please contact (Shamier, Wendy)**

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

**ISSN:**0377-2217

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### 1998, Volume 108, Issue 1

**74-93 Analysis of a single-stage, single-product, stochastic, MRP-controlled assembly system***by*Wilhelm, W. E. & Som, Pradip**94-105 Perception and information in a competitive location model***by*Elselt, H. A.**106-117 Kohonen maps for solving a class of location-allocation problems***by*Lozano, S. & Guerrero, F. & Onieva, L. & Larraneta, J.**118-126 Efficient solution procedure and reduced size formulations for p-hub location problems***by*Sohn, Jinhyeon & Park, Sungsoo**127-139 Stability regions for maintaining efficiency in data envelopment analysis***by*Seiford, Lawrence M. & Zhu, Joe**140-148 Small-sample properties of ML, COLS, and DEA estimators of frontier models in the presence of heteroscedasticity***by*Bojani, Antonio N. & Caudill, Steven B. & Ford, Jon M.**149-152 On alternative optimal solutions in the estimation of returns to scale in DEA***by*Seiford, Lawrence M. & Zhu, Joe**153-164 Probabilistic judgments specified partially in the analytic hierarchy process***by*Basak, Indrani**165-169 Aggregating individual judgments and priorities with the analytic hierarchy process***by*Forman, Ernest & Peniwati, Kirti**170-183 Probability distributions of cost, revenue and profit over a warranty cycle***by*Polatoglu, Hakan & Sahin, Izzet**184-195 Call option pricing and replication under economic friction***by*Ostermark, Ralf**196-207 A dual ascent method for the portfolio selection problem with multiple constraints and linked proposals***by*Syam, Siddhartha S.**208-223 Non-cooperative negotiation strategies for vendor selection***by*Weber, Charles A. & Current, John R. & Desai, Anand**224-237 Addressing the multigroup discriminant problem using multivariate statistics and mathematical programming***by*Ostermark, Ralf & Hoglund, Rune

### 1998, Volume 107, Issue 3

**507-529 Multi-attribute decision making: A simulation comparison of select methods***by*Zanakis, Stelios H. & Solomon, Anthony & Wishart, Nicole & Dublish, Sandipa**530-541 A branch and bound algorithm for mixed zero-one multiple objective linear programming***by*Mavrotas, G. & Diakoulaki, D.**542-551 Choosing realistic values of indifference, preference and veto thresholds for use with environmental criteria within ELECTRE***by*Rogers, Martin & Bruen, Michael**552-563 A new system for weighting environmental criteria for use within ELECTRE III***by*RogerS, Martin & Bruen, Michael**564-574 An interactive fuzzy satisficing method for multiobjective 0-1 programming problems with fuzzy numbers through genetic algorithms with double strings***by*Sakawa, Masatoshi & Shibano, Toshihiro**575-589 An interactive fuzzy satisficing method for structured multiobjective linear fractional programs with fuzzy numbers***by*Sakawa, Masatoshi & Kato, Kosuke**590-598 An interactive fuzzy satisficing method for large scale multiobjective 0-1 programming problems with fuzzy parameters through genetic algorithms***by*Kato, Kosuke & Sakawa, Masatoshi**599-613 Reference direction interactive method for solving multiobjective fuzzy programming problems***by*Mohan, C. & Nguyen, H. T.**614-624 A tolerance approach to the fuzzy goal programming problems with unbalanced triangular membership function***by*Kim, Jong Soon & Whang, Kyu-Seung**625-632 An approximate approach of global optimization for polynomial programming problems***by*Li, Han-Lin & Chang, Ching-Ter**633-643 Infeasibility analysis for systems of quadratic convex inequalities***by*Obuchowska, Wieslawa T.**644-655 Lexicographic improvement of the target values in convex goal programming***by*Caballero, Rafael & Rey, Lourdes & Ruiz, Francisco**656-668 A lexicographic approach to bi-objective loading of a flexible assembly system***by*Sawik, Tadeusz**669-674 On a variant of lexicographic multi-objective programming***by*Sankaran, J. K.**675-685 Duality in multiobjective nonlinear programming involving semilocally convex and related functions***by*Suneja, S. K. & Gupta, Sudha**686-691 Multiobjective symmetric duality with cone constraints***by*Kim, Do Sang & Yun, Ye Boon & Lee, Won Jung**692-709 Optimal system design with MC2 linear programming: A dual contingency plan approach***by*Shi, Yong**710-719 Newton's method for linear inequality systems***by*Pinar, Mustafa C.**720-736 The role of the augmented system in interior point methods***by*Maros, Istvan & Meszaros, Csaba**737-754 A class of differential games which admits a feedback solution with linear value functions***by*Yeung, David W. K.

### 1998, Volume 107, Issue 2

**250-259 The resource constrained project scheduling problem with multiple crashable modes: A heuristic procedure***by*Ahn, Taeho & Erenguc, S. Selcuk**260-271 Heuristics for multimode scheduling problems with dedicated resources***by*Bianco, L. & Dell'Olmo, P. & Grazia Speranza, M.**272-288 A branch and bound algorithm for the resource-constrained project scheduling problem***by*Brucker, Peter & Knust, Sigrid & Schoo, Arno & Thiele, Olaf**289-305 Multi-resource shop scheduling with resource flexibility***by*Dauzere-Peres, S. & Roux, W. & Lasserre, J. B.**306-314 Classical and new heuristics for the open-shop problem: A computational evaluation***by*Gueret, Christelle & Prins, Christian**315-324 Interactive analysis of multiple-criteria project scheduling problems***by*Hapke, Maciej & Jaszkiewicz, Andrzej & Slowinski, Roman**325-337 Minimization of the makespan in a two-machine problem under given resource constraints***by*Janiak, Adam**338-353 On a methodology for discrete-continuous scheduling***by*Jozefowska, Joanna & Weglarz, Jan**354-370 Local search metaheuristics for discrete-continuous scheduling problems***by*Jozefowska, Joanna & Mika, Marek & Rozycki, Rafal & Waligora, Grzegorz & Weglarz, Jan**371-377 Minimizing the number of vehicles in periodic scheduling: The non-Euclidean case***by*Kats, Vladimir & Levner, Eugene**378-388 Two-machine shop scheduling with zero and unit processing times***by*Lushchakova, Irene N. & Kravchenko, Svetlana A.**389-400 Branch and bound crossed with GA to solve hybrid flowshops***by*Portmann, M. -C. & Vignier, A. & Dardilhac, D. & Dezalay, D.**401-413 Distributed scheduling using simple learning machines***by*Seredynski, Franciszek**414-430 A bicriteria two-machine permutation flowshop problem***by*Sivrikaya-Serifoglu, Funda & Ulusoy, Gunduz**431-450 Multi-mode resource-constrained project scheduling by a simple, general and powerful sequencing algorithm***by*Sprecher, Arno & Drexl, Andreas**451-469 On the optimal management of project risk***by*Tavares, L. Valadares & Antunes Ferreira, J. A. & Silva Coelho, J.**470-491 Pre-processing techniques for resource allocation in the heterogeneous case***by*Valls, Vicente & Angeles Perez, M. & Sacramento Quintanilla, M.**492-506 Optimization analysis for design and planning of multi-project programs***by*Wiley, Victor D. & Deckro, Richard F. & Jackson, Jack A.

### 1998, Volume 107, Issue 1

**1-18 A generalized linear programming model for nurse scheduling***by*Jaumard, Brigitte & Semet, Frederic & Vovor, Tsevi**19-34 End-of-life service: A case study***by*Teunter, Ruud H. & Fortuin, Leonard**35-44 The `final orderrs problem***by*Teunter, Ruud H. & Klein Haneveld, Willem K.**45-61 Privatization of nippon telegraph and telephone: Was it a good policy decision?***by*Sueyoshi, Toshiyuki**62-75 Technical efficiency and economies of scale in state owned enterprises: The Hellenic telecommunications organisation***by*Athanassopoulos, Antreas D. & Giokas, Dimitris**76-86 Improving heuristics for the frequency assignment problem***by*Smith, D. H. & Hurley, S. & Thiel, S. U.**87-95 A soft dynamic programming approach for on-line aircraft 4D-trajectory optimization***by*Hagelauer, Patrick & Mora-Camino, Felix**96-107 A mathematical programming viewpoint for solving the ultimate pit problem***by*Underwood, Robert & Tolwinski, Boleslaw**108-118 An MCDM approach to production analysis: An application to irrigated farms in Southern Spain***by*Berbel, J. & Rodriguez-Ocana, A.**119-136 An interactive reservoir management system for Lake Kariba***by*Stam, Antonie & Salewicz, Kazimierz A. & Aronson, Jay E.**137-158 A hybrid inexact-stochastic water management model***by*Huang, G. H.**159-174 Evaluating environmentally conscious business practices***by*Sarkis, Joseph**175-192 Optimal solution of cellular manufacturing system design: Benders' decomposition approach***by*Heragu, Sunderesh S. & Chen, Ja-Shen**193-201 On evaluating the performance of GSS: Furthering the debate***by*Finlay, Paul N.**202-213 Estimating NPV variability for deterministic models***by*van Groenendaal, Willem J. H.**214-235 The greater whole: Towards a synthesis of system dynamics and soft systems methodology***by*Lane, David C. & Oliva, Rogelio

### 1998, Volume 106, Issue 2-3

**221-225 Tabu search -- wellsprings and challenges***by*Glover, Fred**226-253 The flow shop with parallel machines: A tabu search approach***by*Nowicki, Eugeniusz & Smutnicki, Czeslaw**254-265 Performance enhancements to tabu search for the early/tardy scheduling problem***by*James, R. J. W. & Buchanan, J. T.**266-276 Tabu search for resource-constrained scheduling***by*Verhoeven, M. G. A.**277-300 A tabu search approach to machine scheduling***by*Valls, Vicente & Angeles Perez, M. & Sacramento Quintanilla, M.**301-316 Determining buffer location and size in production lines using tabu search***by*Lutz, Christian M. & Roscoe Davis, K. & Sun, Minghe**317-335 The hot strip mill production scheduling problem: A tabu search approach***by*Lopez, Leo & Carter, Michael W. & Gendreau, Michel**336-356 Multiproduct production planning in the presence of work-force learning***by*Mazzola, Joseph B. & Neebe, Alan W. & Rump, Christopher M.**357-372 A Tabu Search algorithm for the optimisation of telecommunication networks***by*Costamagna, Eugenio & Fanni, Alessandra & Giacinto, Giorgio**373-392 Tabu search in audit scheduling***by*Dodin, B. & Elimam, A. A. & Rolland, E.**393-407 Nurse scheduling with tabu search and strategic oscillation***by*Dowsland, Kathryn A.**408-424 A tabu search algorithm for finding good forest harvest schedules satisfying green-up constraints***by*Brumelle, Shelby & Granot, Daniel & Halme, Merja & Vertinsky, Ilan**425-440 Search strategies for the feeder bus network design problem***by*Lucio Martins, Carlos & Vaz Pato, Margarida**441-456 A tabu search heuristic procedure for the fixed charge transportation problem***by*Sun, Minghe & Aronson, Jay E. & McKeown, Patrick G. & Drinka, Dennis**457-488 Intelligent local search strategies for solving facility layout problems with the quadratic assignment problem formulation***by*Chiang, Wen-Chyuan & Chiang, Chi**489-499 A hybrid heuristic for the uncapacitated hub location problem***by*Abdinnour-Helm, Sue**500-521 Solution of large weighted equicut problems***by*Dell'Amico, Mauro & Trubian, Marco**522-538 Relaxed tours and path ejections for the traveling salesman problem***by*Rego, Cesar**539-545 A tabu search heuristic for the undirected selective travelling salesman problem***by*Gendreau, Michel & Laporte, Gilbert & Semet, Frederic**546-557 Separating capacity constraints in the CVRP using tabu search***by*Augerat, P. & Belenguer, J. M. & Benavent, E. & Corberan, A. & Naddef, D.**558-569 A tabu search algorithm for the bipartite drawing problem***by*Marti, Rafael**570-584 Global optimization for artificial neural networks: A tabu search application***by*Sexton, Randall S. & Alidaee, Bahram & Dorsey, Robert E. & Johnson, John D.**585-598 Proposals for chunking and tabu search***by*Woodruff, David L.**599-623 A tabu search approach to the constraint satisfaction problem as a general problem solver***by*Nonobe, Koji & Ibaraki, Toshihide**624-658 Solving zero-one mixed integer programming problems using tabu search***by*Lokketangen, Arne & Glover, Fred**659-675 An efficient tabu search approach for the 0-1 multidimensional knapsack problem***by*Hanafi, Said & Freville, Arnaud**676-688 Hybrid extreme point tabu search***by*Blue, Jennifer A. & Bennett, Kristin P.

### 1998, Volume 106, Issue 1

**1-14 An optimization model for photochemical air pollution control***by*Shih, Jhih-Shyang & Russell, Armistead G. & McRae, Gregory J.**15-30 Robust responses to climate change via stochastic MARKAL: The case of Quebec***by*Kanudia, Amit & Loulou, Richard**31-38 Quality and the diffusion of innovations***by*Ouardighi, Fouad El & Tapiero, Charles S.**39-44 A note on the behavior of the insureds in auto-insurance systems in Turkey***by*Dimitriyadis, Irini & TektaS, Arzu**45-56 Scheduling of piecewise constant product flows: A Petri net approach***by*Proth, Jean-Marie & Sauer, Nathalie**57-73 Safety stocks in multi-stage inventory systems under different service measures***by*Inderfurth, Karl & Minner, Stefan**74-81 Centralized ordering and allocation policies in a two-echelon system with non-identical warehouses***by*Bollapragada, rinivas & Akella, Ram & Srinivasan, Ramesh**82-89 Analysis of deteriorating inventory/production systems using a linear quadratic regulator***by*Andijani, A. & Al-Dajani, M.**90-94 A stochastic inventory problem with fuzzy shortage cost***by*Ishii, Hiroaki & Konno, Tutomu**95-100 On the complexity of two-machine flowshop problems with due date related objectives***by*Koulamas, Christos**101-107 A polynomial algorithm for a two-machine no-wait job-shop scheduling problem***by*Kravchenko, Svetlana A.**108-115 Estimating the urban OD matrix: A neural network approach***by*Zhejun Gong**116-122 A simulation approach for handling uncertainty in the analytic hierarchy process***by*Levary, Reuven R. & Wan, Ke**123-128 A comparison of the Saaty's AHP and modified AHP for right and left eigenvector inconsistency***by*Tung, S. L. & Tang, S. L.**129-136 Evaluation of rankings with regard to the possible number of agreements and conflicts***by*Ray, Thomas G. & Triantaphyllou, Evangelos**137-143 SMAA - Stochastic multiobjective acceptability analysis***by*Lahdelma, Risto & Hokkanen, Joonas & Salminen, Pekka**144-151 A bicriteria model for locating a semi-desirable facility in the plane***by*Brimberg, Jack & Juel, Henrik**152-159 Locating least-distant lines in the plane***by*Schobel, Anita**160-164 k L-list [lambda] colouring of graphs***by*De Luca Cardillo, Dorotea & Mione, Nicola**165-171 Simplifying a special class of mathematical programs arising in design problems***by*Takriti, Samer & Rosa, Charles H.**172-176 On characterizing tighter formulations for 0-1 programs***by*Escudero, L. F. & Munoz, S.**177-183 Some exact algorithms for the knapsack sharing problem***by*Yamada, Takeo & Futakawa, Mayumi & Kataoka, Seiji**184-190 On computing objective function values in multiple objective quadratic-linear programming***by*Korhonen, Pekka & Yu, GuangYuan**191-197 Goal network programs: A specialized algorithm and an application***by*Ali, Agha Iqbal & blanco, Tom & Buclatin, Ben**198-203 Fuzzy resolution on the infeasibility of variational inequality***by*Hsiao-Fan Wang & Hsueh-Ling Liao**204-211 The reduced form of a game***by*Vermeulen, Dries & Jansen, Mathijs**212-219 Efficient algorithms for the clearing of interbank payments***by*Guntzer, Michael M. & Jungnickel, Dieter & Leclerc, Matthias

### 1998, Volume 105, Issue 3

**371-389 Models of wayfinding in emergency evacuations***by*Lovs, Gunnar G.**390-400 The rural postman problem with deadline classes***by*Letchford, A.N. & Eglese, R.W.**401-426 One-dimensional machine location problems in a multi-product flowline with equidistant locations***by*Sarker, Bhaba R. & Wilhelm, Wilbert E. & Hogg, Gary L.**427-446 The choice of a technical efficiency measure on the free disposal hull reference technology: A comparison using US banking data***by*Borger, Bruno De & Ferrier, Gary D. & Kerstens, Kristiaan**447-456 Accommodating diverse institutional investment objectives and constraints using non-linear goal programming***by*Powell, John G. & Premachandra, I.M.**457-466 Epsilon-dominating solutions in mean-variance portfolio analysis***by*White, D.J.**467-474 Deterministic models of perishable inventory with stock-dependent demand rate and nonlinear holding cost***by*Giri, B.C. & Chaudhuri, K.S.**475-482 The canning problem revisited: The case of capacitated production and fixed demand***by*Pollock, Stephen M. & Golhar, Damodar**483-493 Sensitivity calculation of the throughput of an FMS with respect to the routing mix using perturbation analysis***by*Koltai, Tamas & Lozano, Sebastian**494-501 Scheduling under a common due-data on parallel unrelated machines***by*Adamopoulos, George I. & Pappis, Costas P.**502-508 Scheduling a single machine to minimize earliness penalties subject to the SLK due-date determination method***by*Qi, Xiangton & Tu, Feng-Sheng**509-524 Impact of learning and fatigue factors on single machine scheduling with penalties for tardy jobs***by*Reddy Dondeti, V. & Mohanty, Bidhu B.**525-536 On stochastic machine scheduling with general distributional assumptions***by*Li, Wei & Glazebrook, Kevin D.**537-551 An optimal tree search method for the manufacturing systems cell formation problem***by*Spiliopoulos, K. & Sofianopoulou, S.**552-568 Designing reliable tree networks with two cable technologies***by*Gouveia, Luis & Janssen, Eric**569-580 The effects of exogenous variables in efficiency measurement--A monte carlo study***by*Yu, Chunyan**581-593 The utility efficient set and its interactive reduction***by*Rios-Insua, Sixto & Mateos, Alfonso**594-603 Different transformations for solving non-convex trim-loss problems by MINLP***by*Harjunkoski, Iiro & Westerlund, Tapio & Porn, Ray & Skrifvars, Hans**604-612 An approximately global optimization method for assortment problems***by*Li, Han-Lin & Chang, Ching-Ter**613-621 A GRASP for the biquadratic assignment problem***by*Mavridou, T. & Pardalos, P.M. & Pitsoulis, L.S. & Resende, Mauricio G.C.**622-625 Inner and outer approximations of technology: a data envelopment analysis approach***by*Fare, Rolf & Li, Sung Ko**626-629 A note on pseudo-invexity and symmetric duality***by*Chandra, S. & Kumar, V.

### 1998, Volume 105, Issue 2

**247-629 Managing health care under resource constraints***by*Delesie, L. & Kastelein, A. & van Merode, F. & Vissers, J. M. H.**248-256 Bridging the gap between clinicians and health managers***by*Delesie, Luc**257-266 What is the role and contribution of models to management and research in the health services? A view from Europe***by*Lagergren, Marten**267-276 Shifting the balance of health care into the 21st century***by*Royston, Geoff**277-284 Applying simple dynamic modelling for decision support in planning regional health care***by*De Vries, Theo & Beekman, Reno E.**285-295 Planning resources for renal services throughout UK using simulation***by*Davies, Ruth & Roderick, Paul**296-307 Dynamic entry deterrence in the UK pathology services market***by*Lee, C. B. & Murphy, W. D. & Fletcher, L. R. & Binner, J. M.**308-316 Optimisation of the structure of the clinical laboratory***by*van Merode, G. G. & Oosten, M. & Vrieze, O. J. & Derks, J. & Hasman, A.**317-331 The federal nursing minimum basic data set and hospital management in Belgium: A case study of a nursing department***by*Vanden Boer, Guy & Delesie, Luc**332-345 A management tool to trace the clinical path of depressed patients***by*Haspeslagh, Marc & Delesie, Luc**346-355 Capacity planning for intensive care units***by*Ridge, J. C. & Jones, S. K. & Nielsen, M. S. & Shahani, A. K.**356-370 Patient flow-based allocation of inpatient resources: A case study***by*Vissers, Jan M. H.

### 1998, Volume 105, Issue 1

**1-17 A model for warehouse order picking***by*Daniels, Richard L. & Rummel, Jeffrey L. & Schantz, Robert**18-28 Optimal product and server locations in one-dimensional storage racks***by*Vickson, R. G. & Lu, Xinjian**29-37 Multicriteria inventory classification using a genetic algorithm***by*Altay Guvenir, H. & Erel, Erdal**38-42 Optimal strategy for the integrated vendor-buyer inventory model***by*Viswanathan, S.**43-51 Base stock policies for production/inventory problems with uncertain capacity levels***by*Gullu, Refik**52-65 Aggregate scheduling and network solving of multi-stage and multi-item manufacturing systems***by*Huang, Hai-Jun & Xu, Gang**66-71 A new constructive heuristic for the flowshop scheduling problem***by*Koulamas, Christos**72-90 Time lag size in multiple operations flow shop scheduling heuristics***by*Riezebos, J. & Gaalman, G. J. C.**91-99 Capacity planning by the dynamic multi-resource generalized assignment problem (DMRGAP)***by*Shtub, Avraham & Kogan, Konstantin**100-112 Searching for an optimal rotation age for forest stand management under stochastic log prices***by*Yoshimoto, Atsushi & Shoji, Isao**113-117 Bayesian inferences for several autoregressive processes***by*Salazar, Diego & Moen, David H.**118-129 Action-timing problem with sequential Bayesian belief revision process***by*Ahn, Jae-Hyeon & Kim, John J.**130-142 Neural network as a simulation metamodel in economic analysis of risky projects***by*Badiru, Adedeji B. & Sieger, David B.**143-154 A learning curve model with knowledge depreciation***by*Li, Georgi & Rajagopalan, S.**155-161 Hierarchical multi-objective decision making***by*Homburg, Carsten**162-183 Interval-valued preference structures***by*Bilgic, Taner**184-201 Fluid stochastic Petri nets: Theory, applications, and solution techniques***by*Horton, Graham & Kulkarni, Vidyadhar G. & Nicol, David M. & Trivedi, Kishor S.**202-215 Lower bounds for nonlinear assignment problems using many body interactions***by*Ramachandran, Bala & Pekny, J. F.**216-223 Efficient cuts in Lagrangean `Relax-and-cut' schemes***by*Guignard, Monique**224-235 Non-linear integer programming by Darwin and Boltzmann mixed strategy***by*Tian, Peng & Ma, Jian & Zhang, Dong-Mo**236-246 A Newton-type univariate optimization algorithm for locating the nearest extremum***by*Tseng, Chung-Li

### 1998, Volume 104, Issue 3

**393-402 The behavior of extreme values in Germany's stock index futures: An application to intradaily margin setting***by*Broussard, John Paul & Booth, G. Geoffrey**403-422 A hierarchical decision support system for production planning (with case study)***by*Ozdamar, Linet & Bozyel, M. Ali & Birbil, S. Ilker**423-436 On the (R, s, Q) inventory model when demand is modelled as a compound Bernoulli process***by*Janssen, Fred & Heuts, Ruud & de Kok, Ton**437-450 Manufacturer incentives to improve retail service levels***by*Ernst, Ricardo & Powell, Stephen G.**451-473 Optimal television schedules in alternative competitive environments***by*Kelton, Christina M. L. & Schneider Stone, Linda G.**474-484 A framework for analysing decisions under risk***by*Danielson, Mats & Ekenberg, Love**485-496 Comparing multicriteria methods in the context of environmental problems***by*Salminen, Pekka & Hokkanen, Joonas & Lahdelma, Risto**497-509 Reserve assemblage of critical areas: A zero-one programming approach***by*Williams, Justin C. & ReVelle, Charles S.**510-520 Design of a distributed fiber transport network with hubbing topology***by*Moon-gil Yoon & Young-ho Baek & Dong-wan Tcha**521-531 A parallel implementation of the PROMETHEE method***by*Dias, Luis C. & Costa, Joao P. & Climaco, Joao N.**532-548 Stochastic models and variable returns to scales in data envelopment analysis***by*Li, Susan X.**549-558 An experimental evaluation of the efficacy of four multi-objective linear programming algorithms***by*Downing, C. E. & Ringuest, J. L.**559-571 A model to optimize project resource allocation by construction of a balanced histogram***by*Konstantinidis, Peter D.**572-581 Solving a two-dimensional trim-loss problem with MILP***by*Westerlund, Tapio & Isaksson, Johnny & Harjunkoski, Iiro**582-592 Cyclic and non-cyclic scheduling of 12 h shift nurses by network programming***by*Millar, Harvey H. & Kiragu, Mona**593-600 The [beta]-assignment problems***by*Chang, Gerard J. & Ho, Pei-Hsin**601-614 An objective hyperplane search procedure for solving the general all-integer linear programming (ILP) problem***by*Joseph, Anito & Gass, Saul I. & Bryson, Noel**615-621 Symmetric duality for nonlinear programming problem involving [eta]-bonvex functions***by*Devi, G.

### 1998, Volume 104, Issue 2

**265-268 Twelveth EURO summer institute: Locational analysis***by*Barcelo, J.**269-287 Some personal views on the current state and the future of locational analysis***by*Avella, P. & Benati, S. & Canovas Martinez, L. & Dalby, K. & Di Girolamo, D. & Dimitrijevic, B. & Ghiani, G. & Giannikos, I. & Guttmann, N. & Hultberg, T. H. & Fliege, J. & Marin, A. & Munoz Marquez, M. & Ndiaye, M. M. & Nickel, S. & Peeters, P. & Perez Brito, D. & Policastro, S. & Saldanha de Gama, F. A. & Zidda, P.**288-298 Efficiency in constrained continuous location***by*Ndiaye, M. & Michelot, C.**299-309 Some new algorithms for location problems on networks***by*Peeters, Peter H.**310-320 Coincidence conditions in multifacility location problems with positive and negative weights***by*Fliege, Jorg