# Elsevier

# European Journal of Operational Research

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**Editor:**

**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 (Zhang, Lei)**

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

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### 1992, Volume 58, Issue 2

**215-222 Branch-and-bound algorithms for the multi-product assembly line balancing problem***by*Berger, Ilana & Bourjolly, Jean-Marie & Laporte, Gilbert**223-235 Random pseudo-polynomial algorithms for some combinatorial programming problems***by*Galbiati, G. & Maffioli, F.**236-249 Reformulating nonlinear combinatorial optimization problems for higher computational efficiency***by*Oral, Muhittin & Kettani, Ossama**250-262 A Lagrangean heuristic for the pk-median dynamic location problem***by*Galvao, Roberto Dieguez & Santibanez-Gonzalez, Ernesto del R.**263-271 An and--or-graph approach for two-dimensional cutting problems***by*Morabito, R. N. & Arenales, M. N. & Arcaro, V. F.**272-283 A heuristic procedure for the crew rostering problem***by*Bianco, Lucio & Bielli, Maurizio & Mingozzi, Aristide & Ricciardelli, Salvatore & Spadoni, Massimo**284-292 A heuristic for Euclidean and rectilinear Steiner problems***by*Beasley, J. E.**293-300 Enhancing an algorithm for set covering problems***by*Beasley, J. E. & Jornsten, K.

### 1992, Volume 58, Issue 1

**1-2 Warehouse design and operation***by*Gelders, Ludo F.**3-13 A review of warehouse models***by*Cormier, Gilles & Gunn, Eldon A.**14-36 Design and operation of an order-consolidation warehouse: Models and application***by*Gray, Ann E. & Karmarkar, Uday S. & Seidmann, Abraham**37-47 Zone shapes in class based storage and multicommand order picking when storage/retrieval machines are used***by*Guenov, Marin & Raeside, Robert**48-56 Storage layout of AS/RS racks based on recurrent orders***by*van Oudheusden, D. L. & Zhu, W.**57-67 Order batching procedures***by*Gibson, David R. & Sharp, Gunter P.**68-77 Setup cost stability region for the dynamic lot sizing problem with backlogging***by*Chand, Suresh & Voros, Jozsef**78-89 Asymptotic analysis of dichotomous search with search and travel costs***by*Hassin, Refael & Hotovely, Reuven**90-98 A fuzzy set-theoretic method for public facility location***by*Chung, Ki-ho & Tcha, Dong-wan**99-111 Multi-item batching heuristics for minimization of queueing delays***by*Karmarkar, Uday S. & Kekre, Sham & Kekre, Sunder**112-122 Optimal preventive maintenance policies in an M/G/1 queue-like production system***by*Hsu, Lie-Fern**123-145 Queueing models for performance analysis: Selection of single station models***by*Springer, Mark C. & Makens, Paul K.

### 1992, Volume 57, Issue 3

**305-308 Simulation in 1991 -- Ten years on***by*Crookes, J. G.**309-315 Meeting seasonal demand in a dynamic production environment***by*Myers, Danny C.**316-322 Vehicle crew scheduling to complete specific tasks and bulk-tasks at depots***by*Ferland, Jacques A. & Taillefer, Serge**323-331 Optimal due-date assignment and sequencing***by*De, Prabuddha & Ghosh, Jay B. & Wells, Charles E.**332-338 Solving sequential interval cutting problems via dynamic programming***by*Richter, Knut**339-347 The history of the application of mathematical programming to menu planning***by*Lancaster, Lilly M.**348-354 Task scheduling with interprocessor communication delays***by*Chretienne, Philippe**355-359 Lexicographic optimality in the multiple objective linear programming: The nucleolar solution***by*Marchi, Ezio & Oviedo, Jorge A.**360-367 Optimality and duality for multiobjective nonsmooth programming***by*Bhatia, Davinder & Aggarwal, Shashi**368-380 Generalized hyperplane methods for characterizing [Lambda]-extreme points and trade-off rates for multiobjective optimization problems***by*Sakawa, Masatoshi & Yano, Hitoshi**381-394 Multiple-objective programming with polynomial objectives and constraints***by*Kostreva, Michael M. & Ordoyne, Thomas J. & Wiecek, Malgorzata**395-408 Gauss-Seidel-Newton-Armijo approach for minimization problems on the non-negative orthant; Application to spatial price equilibrium problems***by*Crouzeix, Jean-Pierre & Ferland, Jacques A. & Zubieta, Lourdes**409-411 A note on weakly active constraints in connection with nonconvex quadratic programming***by*Korner, P. Frank**412-420 A purification algorithm for semi-infinite programming***by*Leon, Teresa & Vercher, Enriqueta**421-428 A Markovian process in interactive multiobjective decision-making***by*Tapia, Cesar G. & Murtagh, Bruce A.

### 1992, Volume 57, Issue 2

**135-428 Editorial***by*Heragu, Sunderesh S.**136-144 Recent models and techniques for solving the layout problem***by*Heragu, Sunderesh S.**145-161 Flow network design for manufacturing systems layout***by*Chhajed, Dilip & Montreuil, Benoit & Lowe, Timothy J.**162-173 Integrating facility layout with process selection and capacity planning***by*Askin, Ronald G. & Mitwasi, M. George**174-189 A nonlinear optimization approach for solving facility layout problems***by*van Camp, Drew J. & Carter, Michael W. & Vannelli, Anthony**190-202 Experimental analysis of simulated annealing based algorithms for the layout problem***by*Heragu, Sunderesh S. & Alfa, Attahiru Sule**203-223 Simulated annealing for machine layout problems in the presence of zoning constraints***by*Kouvelis, Panagiotis & Chiang, Wen-Chyuan & Fitzsimmons, James**224-230 Layout design for flexible manufacturing systems***by*Kaku, Bharat K. & Rachamadugu, Ram**231-242 A multiattribute decision-theoretic approach for the layout design problem***by*Sarin, Subhash C. & Loharjun, Pasu & Malmborg, Charles J. & Krishnakumar, Bhaskaran**243-252 A graph-theoretic heuristic for designing loop-layout manufacturing systems***by*Leung, Janny**253-270 A distance assignment approach to the facility layout problem***by*Rosenblatt, Meir J. & Golany, Boaz**271-279 Computational performance and efficiency of lower-bound procedures for the dynamic facility layout problem***by*Urban, Timothy L.**280-286 Solutions for the constrained dynamic facility layout problem***by*Balakrishnan, Jaydeep & Jacobs, F. Robert & Venkataramanan, Munirpallam A.**287-304 Performance evaluation of cellular flexible manufacturing systems: A decomposition approach***by*Ram, R. & Viswanadham, N.

### 1992, Volume 57, Issue 1

**1-12 Optimization aspects of deadlock prevention in packet-switching networks***by*Blazewicz, J. & Brzezinski, J. & Gambosi, G.**13-23 A test on a priori financial characteristics of the firm***by*Kanto, Antti J. & Martikainen, Teppo**24-31 Expert opinion in project management***by*Bhola, B. & Cooke, R. M. & Blaauw, H. G. & Kok, M.**32-38 A practical heuristic for a large scale vehicle routing problem***by*Raghavendra, Anirudh & Krishnakumar, T. S. & Muralidhar, R. & Sarvanan, D. & Raghavendra, B. G.**39-53 Generating statistically dependent pairs of random variables: A marginal distribution approach***by*Grimlund, Richard A.**54-70 A distribution multi-echelon lot-size model***by*Friedman, Moshe F.**71-76 A deterministic inventory model for deteriorating items with two warehouses and finite replenishment rate***by*Pakkala, T. P. M. & Achary, K. K.**77-88 All-units quantity-freight discounts with disposals***by*Arcelus, F. J. & Rowcroft, J. E.**89-99 A usage dependent model for warranty costing***by*Murthy, D. N. P.**100-110 Replacement policies of a shock model with imperfect preventive maintenance***by*Kijima, Masaaki & Nakagawa, Toshio**111-122 A multi-stage parallel-processor flowshop problem with minimum flowtime***by*Rahendran, Chandrasekharan & Chaudhuri, Dipak**123-131 A pseudo-polynomial algorithm for detecting minimum weighted length paths in a network***by*Yang, C. E. & Foulds, L. R. & Scott, J. L.**132-133 Job-shop (C codes)***by*Brucker, P. & Jurisch, B. & Sievers, B.

### 1992, Volume 56, Issue 3

**291-303 Strategies for service systems***by*Siferd, Sue Perrott & Benton, W. C. & Ritzman, Larry P.**304-318 The optimisation of defence expenditure***by*Coyle, R. G.**319-331 Measuring the quality of computer model performance***by*O'Leary, Daniel E.**332-342 Estimating reorder points and other management science applications by bootstrap procedure***by*Wang, Min-Chiang & Subba Rao, S.**343-356 An in-depth empirical investigation of non-greedy approaches for the minimum spanning tree problem***by*Glover, F. & Klingman, D. & Krishnan, R. & Padman, R.**357-363 Multiobjective, preference-based search in acyclic OR-graphs***by*White, Chelsea C. & Stewart, Bradley S. & Carraway, Robert L.**364-369 Minimum loss scheduling problems***by*Nawijn, W. M.**370-379 An iterative scheduling technique for resource-constrained project scheduling***by*Li, K. Y. & Willis, R. J.**380-393 A comparative study of interactive tradeoff cutting plane methods for MOMP***by*Shin, Wan S. & Ravindran, A.**394-406 A linear algebraic formulation of the performance sensitivities of queueing networks***by*Cao, Xi-Ren**407-412 The stochastic vehicle routing problem revisited***by*Bastian, Cock & Rinnooy Kan, Alexander H. G.**413-422 A control policy for replacement involving two machines and one repairman***by*Noh, Jangkab & Kang, Sung-Jin & Feldman, Richard M.**423-422 Network optimization -- A computer course***by*Ivanchev, D. & Bijev, G. & Stacheva, T.

### 1992, Volume 56, Issue 2

**133-133 Editorial***by*Wallenius, Hannele & Wallenius, Jyrki**134-145 A 0-1 nonlinear programming model for coast guard fisheries law enforcement aircraft patrols***by*Armacost, Robert L.**146-153 Optimizing the level of grant support for local government: An application of a behavioral model***by*Barnett, Richard R. & Levaggi, Rosella & Smith, Peter**154-171 Using game theory to analyze electric transmission pricing policies in the United States***by*Hobbs, Benjamin F. & Kelly, Kevin A.**172-183 Decision support for risk analysis in energy policy***by*Hamalainen, Raimo P. & Karjalainen, Risto**184-191 The afforestation problem: A heuristic method based on simulated annealing***by*Jorgensen, Rune Mork & Thomsen, Hans & Vidal, ReneVictor Valqui**192-209 Investment and harvest strategies of the Finnish forest sector under different forest-tax policies: A differential game approach with computer-based decision aid***by*Kivijarvi, Hannu & Soismaa, Margareta**210-218 Multiple objective analysis of long-term development strategies for a national economy***by*Lotov, A. & Chernykh, O. & Hellman, O.**219-236 Multiple-criteria robust interactive decision analysis (MCRID) for optimizing public policies***by*Moskowitz, Herbert & Preckel, Paul V. & Yang, Aynang**237-248 OR in energy planning for a small country***by*Read, E. G. & Culy, J. G. & Gale, S. J.**249-262 Ordinal data in multicriteria decision making, a stochastic dominance approach to siting nuclear power plants***by*Rietveld, Piet & Ouwersloot, Hans**263-277 Transboundary air pollution in Europe: An interactive multicriteria tradeoff analysis***by*Stam, Antonie & Kuula, Markku & Cesar, Herman**278-289 Interactive multiobjective analysis and assimilative capacity-based ocean disposal decisions***by*Leschine, Thomas M. & Wallenius, Hannele & Verdini, William A.

### 1992, Volume 56, Issue 1

**1-289 Editorial***by*Mercer, Alan & Tilanus, Bernhard & Zimmermann, Hans-Jurgen**2-14 Packing problems***by*Dowsland, Kathryn A. & Dowsland, William B.**15-29 Developing an expert support system for tender enquiry evaluation: A case study***by*Phythian, Gary John & King, Malcolm**30-40 Multicriterion issues in energy policymaking***by*Karni, Reuven & Feigin, Paul & Breiner, Avishai**41-53 Insufficient supply in a natural gas distribution system: A risk analysis***by*von Lanzenauer, Christoph Haehling & James, William G. & Wright, Don D.**54-66 Understanding the competitive process A guide to effective intervention in the small firms sector***by*Horne, Martin & Lloyd, Peter & Pay, John & Roe, Philip**67-79 On bankruptcy information systems***by*O'Leary, Daniel E.**80-97 Estimating preferred target input-output levels using data envelopment analysis***by*Thanassoulis, E. & Dyson, R. G.**98-106 Stochastic modeling of security returns: Evidence from the Helsinki Stock Exchange***by*Geoffrey Booth, G. & Hatem, John & Virtanen, Ilkka & Yli-Olli, Paavo**107-118 Multi-period production control in a centralized fully flexible manufacturing system***by*Liu, John J.**119-130 Applying a modified coefficient reduction method to a dynamic production scheduling model***by*Guignard, Monique & Liberatore, Matthew J.

### 1991, Volume 55, Issue 3

**293-295 Editorial***by*Jelassi, Taufik & P. Paixao, Jose**296-308 Modeling by example: A link between users, models and methods in DSS***by*Angehrn, Albert A.**309-318 Preference modeling as a reasoning process: A new way to face uncertainty in multiple criteria decision support systems***by*Tsoukias, Alexis**319-328 A decision support system for production planning in an industrial unit***by*Moreira, Nuno Alexandre & Oliveira, Rui Carvalho**329-343 A decision support system for operational production scheduling***by*Speranza, M. Grazia & Woerlee, Auke P.**344-356 Incorporating just-in-time into a decision support system environment***by*Oguz, Ceyda & Dincer, Cemal**357-367 Decision support for improving systems reliability by redundancy***by*Petrovic, Dobrila**368-381 Decision support systems -- An application in strategic manpower planning of airline pilots***by*Verbeek, Peter J.**382-393 A computer based interactive approach to crew scheduling***by*de Sousa, Jorge Freire**394-402 The process of designing a DSS: A case study in planning management***by*Zarate, Pascale**403-408 Decision support systems for military applications***by*Dargam, Fatima Cristina Canazaro & Lopes Passos, Emmanuel P. & Rocha Pantoja, Fernando Da**409-422 1990 and Beyond: Developing a process for group decision support in large scale event planning***by*Pizey, Hugh & Huxham, Chris

### 1991, Volume 55, Issue 2

**123-422 Editorial***by*Ronen, David**124-135 Value of ocean current information for strategic routing***by*Hong Kam Lo & McCord, Mark R. & Wall, Cori K.**136-147 Optimal cruise-liner passenger cabin pricing policy***by*Ladany, Shaul P. & Arbel, Avner**148-164 Dispatching a fishing trawler fleet in the Canadian Atlantic groundfish industry***by*Millar, Harvey H. & Gunn, Eldon A.**165-182 Optimal maintenance, repair, and replacement for Great Lakes marine diesels***by*Perakis, A. N. & Inozu, B.**183-190 Heuristics for sequencing cutting patterns***by*Yuen, Boon J.**191-200 Evaluation of management strategies under environmental constraints***by*Wirl, Franz**201-210 An optimal tool selection procedure for the initial design phase of a flexible manufacturing system***by*Kouvelis, Panagiotis**211-217 Application of multicriterional analysis on the selection of the location for disposal of communal waste***by*Vuk, Drago & Kozelj, Bogomir & Mladineo, Nenad**218-227 Using false alarms to improve forecast accuracy***by*McClain, John O. & Thomas, L. Joseph**228-236 On the calculation of true and pseudo penalties in multiple choice integer programming***by*Lin, Edward Y. H. & Bricker, Dennis L.**237-242 Scheduling around a small common due date***by*Hoogeveen, J. A. & van de Velde, S. L.**243-259 Planning harvesting and marketing activities for integrated fishing firms under an enterprise allocation scheme***by*Gunn, E. A. & Millar, H. H. & Newbold, S. M.**260-267 Labour costs and queueing theory in retailing***by*Frenk, J. B. G. & Thurik, A. R. & Bout, C. A.**268-278 Optimal pricing of a product with periodic enhancements***by*Besanko, David & Winston, Wayne L.**279-290 A finite state Markov model with continuous time parameter for physical and chemical cutting processes***by*Saedt, Anton P. H. & Homan, Waldemar J. & Peter Reinders, M.

### 1991, Volume 55, Issue 1

**1-13 Operational research and insurance***by*von Lanzenauer, Christoph Haehling & Wright, Don D.**14-30 Analysis of a multi-period pricing problem***by*Narasimhan, Chakravarthi & Iyer, Ananth. V. & Shi, Jiahong**31-45 On a general network location-production-allocation problem***by*Louis Hakimi, S. & Kuo, Ching-Chung**46-56 Vector forecasting and dynamic portfolio selection: Empirical efficiency of recursive multiperiod strategies***by*Ostermark, Ralf**57-70 A nonlinear mixed integer goal programming model for the two-machine closed flow shop***by*Lashine, Sherif & Foote, B. & Ravindran, A.**71-81 Optimal dynamic load distribution in a class of flow-type flexible manufacturing systems***by*Jo, K. Y. & Maimon, O. Z.**82-90 Optimal allocation of storage space***by*Sagan, Hans & Bishir, John W.**91-102 Stability of an optimal schedule***by*Stoskov, Y. N.**103-111 Achievement test construction using 0-1 linear programming***by*Adema, Jos J. & Boekkooi-Timminga, Ellen & van der Linden, Wim J.**112-114 A note on `Stability of the constant cost dynamic lot size model' by K. Richter***by*van Hoesel, Stan & Wagelmans, Albert**115-119 QAPLIB-A quadratic assignment problem library***by*Burkard, R. E. & Karisch, S. & Rendl, F.

### 1991, Volume 54, Issue 3

**273-119 Editorial***by*Belton, Valerie & Elder, Mark**274-286 Visual interactive modelling: The past, the present, and the prospects***by*Bell, Peter C.**287-292 Visual interactive simulation as a communication tool -- A case study***by*Porter, Kenneth**293-298 WITNESS: Unlocking the power of visual interactive simulation***by*Clark, Martin F.**299-305 Development and use of a visual interactive planning board within Alcan Aluminium***by*Walker, L. J. & Woolven, J. D.**306-317 An animated interactive modelling system for decision support***by*Buchanan, Iain & McKinnon, Ken**318-324 BANKADVISER: An industrial evaluation system***by*Mareschal, B. & Brans, J. P.**325-329 Enhancing point-of-sale productivity and satisfaction in retail stores***by*Lembersky, Mark R.**330-338 Visual interactive financial models: An overview of microcomputer software offerings and discussion of potential decision support***by*Parker, Drew C.**339-348 Interaction with a visual interactive simulation, and the effect of cognitive style***by*O'Keefe, Robert M. & Pitt, Ivan L.**349-356 Intelligent Visual Interactive Modelling***by*Hurrion, R. D.**357-362 Whither VIM? -- A developer's view***by*Bright, J. G. & Johnston, K. J.

### 1991, Volume 54, Issue 2

**141-150 Cutting stock problems and solution procedures***by*Haessler, Robert W. & Sweeney, Paul E.**151-162 A heuristic approach to the lumber allocation problem in hardwood dimension and furniture manufacturing***by*Foronda, Segundino U. & Carino, Honorio F.**163-175 System planning and configuration problems for optimal system design***by*Tang, Christopher S. & Yoo, Seuck-Cheun**176-190 A framework for sensitivity analysis in discrete multi-objective decision-making***by*Insua, David Rios & French, Simon**191-198 A multiple criteria decision model with ordinal preference data***by*Cook, Wade D. & Kress, Moshe**199-209 Transformation and restructuring of linear multiobjective programs: A fundamental method to resolve complex problems***by*Chien, I. S. & Yu, P. L.**210-226 The continuous modular design problem with linear separable side constraints***by*Goldberg, Jeffrey**227-236 Two algorithms for maximizing a separable concave function over a polymatroid feasible region***by*Groenevelt, H.**237-255 Parametric nonlinear integer programming: The right-hand side case***by*Chern, Maw-Sheng & Jan, Rong-Hong & Chern, Ren-Jer**256-266 Analyses of an M/M/N/ queue with server's vacations***by*Kao, Edward P. C. & Narayanan, Kumar S.

### 1991, Volume 54, Issue 1

**1-6 One time only incentives and inventory policies***by*Goyal, S. K. & Srinivasan, G. & Arcelus, F. J.**7-22 The pickup and delivery problem with time windows***by*Dumas, Yvan & Desrosiers, Jacques & Soumis, Francois**23-38 On the computational complexity of (maximum) class scheduling***by*Kolen, Antoon W. J. & Kroon, Leo G.**39-47 Tabu search for large scale timetabling problems***by*Hertz, A.**48-65 as a compromise between outranking methods and***by*Matarazzo, Benedetto**66-73 Applications of the parametric programming procedure***by*Bryson, Noel**74-80 Proper efficiency in nonconvex vector-maximization-problems***by*Belkeziz, Khalid & Pirlot, Marc**81-94 Generalized Nash games and quasi-variational inequalities***by*Harker, Patrick T.**95-114 A new approach to uncertain parameter linear programming***by*Yang, Yaguang**115-120 Water needs for irrigation based on soil water negative pressure -- A renewal theory application on potatoes***by*Sapountzis, Costas**121-139 Consistency of infinitesimal perturbation analysis for the GI/G/m queue***by*Fu, Michael C. & Hu, Jian-Qiang**140-139 HMIP - Heuristic program for mixed integer programs***by*Ibaraki, T.

### 1991, Volume 53, Issue 3

**257-278 The maximum flow problem: A max-preflow approach***by*Mazzoni, Giuseppe & Pallottino, Stefano & Scutella, Maria Grazia**279-287 Road planning in rural areas of developing countries***by*Makarachi, G. A. & Tillotson, H. T.**288-296 On the riskiness of the world's stock markets***by*Malkamaki, Markku J. & Martikainen, Teppo & Perttunen, Jukka**297-308 A demand-to-manufacturing-requirement model based on predefined configurations***by*Proth, J. -M. & Xie, X. -L.**309-316 Cost function for a periodic reorder-point system with time dependent replenishment costs***by*Matta, Khalil F.**317-325 Single machine scheduling problem with a common deadline and resource dependent release dates***by*Janiak, Adam**326-336 The complexity of shop-scheduling problems with two or three jobs***by*Sotskov, Yu. N.**337-347 Cardinal ranking of alternative actions: extension of the method***by*Diakoulaki, D. & Koumoutsos, N.**348-361 Application of fuzzy theories to multiple objective decision making in system design***by*Anoop Kumar Dhingra & Moskowitz, Herbert**362-370 Some bounds on probability of error in fuzzy discrimination problems***by*Pardo, L. & Menendez, M. L.**371-381 A nonlinear programming approach to the parameter design problem***by*Fathi, Yahya**382-392 Approximate analysis of a closed fork/join model***by*Liu, Y. C. & Perros, H. G.**393-401 The arc partitioning problem***by*Bodin, Lawrence & Levy, Laurence**402-404 A linear time algorithm for the maximum capacity path problem***by*Punnen, Abraham P.

### 1991, Volume 53, Issue 2

**131-148 Multilevel capacitated lotsizing complexity and LP-based heuristics***by*Maes, Johan & McClain, John O. & Van Wassenhove, Luk N.**149-165 FLEXSIM: A flexible manufacturing system simulator***by*Gelenbe, Erol & Guennouni, Hatim**166-171 A nonlinear goal programming model for multistage, multiobjective decision problems with application to grouping and loading problem in a flexible manufacturing system***by*Kumar, P. & Singh, N. & Tewari, N. K.**172-188 Cyclic service queues with very short service times***by*Kubat, P. & Servi, L. D.**189-205 A data envelopment analytic model for assessing the relative efficiency of the selling function***by*Mahajan, Jayashree**206-216 Incorporating the uncertainty of decision judgements in the analytic hierarchy process***by*Sajjad Zahir, M.**217-227 Beyond preference information based multiple criteria decision making***by*Rosinger, Elemer E.**228-243 Single-sided economic screening models incorporating individual unit misclassification error and risk preference***by*Moskowitz, Herbert & Plante, Robert & Tsai, Hsien-Tang**244-253 Planar exponential random walk with restricted angles of turn***by*Conolly, Brian W. & Roberts, David M.

### 1991, Volume 53, Issue 1

**1-13 Efficient models for the facility layout problem***by*Heragu, Sunderesh S. & Kusiak, Andrew**14-24 The zone-constrained location problem on a network***by*Berman, O. & Einav, D. & Handler, G.**25-37 Heuristics for the p-hub location problem***by*Klincewicz, J. G.**38-45 Computational results from a new Lagrangean relaxation algorithm for the capacitated plant location problem***by*Barcelo, Jaime & Fernandez, Elena & Jornsten, Kurt O.**46-63 Opportunity-based block replacement***by*Dekker, Rommert & Smeitink, Eric