# 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 (Shamier, Wendy)**

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

**ISSN:**0377-2217

**Citations RSS feed:**at CitEc

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### 1993, Volume 66, Issue 2

**235-249 Modeling muddles: Validation beyond the numbers***by*Smith, Jeffrey H.**250-258 Model accreditation: A rationale and process for determining a numerical rating***by*Gass, Saul I.

### 1993, Volume 66, Issue 1

**1-26 Flexible manufacturing systems: An investigation for research and applications***by*Gunasekaran, A. & Martikainen, T. & Yli-Olli, P.**27-35 Determining market response functions by neural network modeling: A comparison to econometric techniques***by*Hruschka, Harald**36-51 Fuzzy nonlinear regression analysis of dose-response relationships***by*Bardossy, Andras & Bogardi, Istvan & Duckstein, Lucien**52-64 Diversification under yield randomness in inventory models***by*Parlar, Mahmut & Wang, Dan**65-71 A sequencing problem in the weaving industry***by*Al-Haboubi, Mohamad H. & Selim, Shokri Z.**72-88 Characterization of desirable information processing and decision making systems in organization***by*Kijima, Kyoichi**89-99 On repetitive control and the behaviour of a middle-aged consumer***by*Krawczyk, Jacek B. & Karacaoglu, Girol**100-112 A multiperiod planning model for communications satellites***by*Dutta, Amitava & Rama, Dasaratha V.**113-123 Optimal bus services on express basis in the case of balking and reneging***by*Sharma, R. R. & Rai, R. C. & Mishra, A.**124-134 Analyses of spares for new weapons systems using Markov chains***by*White, Charles R.**135-147 Batching policies for a repair shop with limited spares and finite capacity***by*Chua, Richard C. H. & Scudder, Gary D. & Hill, Arthur V.**148-157 Bicriteria network flow problems: Integer case***by*Lee, Haijune & Simin Pulat, P.**158-160 HOPDM -- A higher order primal-dual method for large scale linear programming***by*Altman, Anna & Gondzio, Jacek

### 1993, Volume 65, Issue 3

**291-160 Editorial***by*Maros, Istvan**292-304 Some experiments on heuristic code selection versus numerical performance in nonlinear programming***by*Schittkowski, K.**305-313 A software system for multiextremal optimization***by*Gergel, V. P.**314-320 The impact of accelerating tools on the interval subdivision algorithm for global optimization***by*Csendes, Tibor & Pinter, Janos**321-326 Quadratic convergence of an extrapolation method***by*Kun, Istvan**327-335 Quasiconvex first-order approximations and Kuhn-Tucker type optimality conditions***by*Komlosi, S.**336-342 A mathematical model and a heuristic procedure for the turbine balancing problem***by*Fathi, Yahya & Ginjupalli, Krishna K.**343-350 On using LP to collision detection between a manipulator arm and surrounding obstacles***by*Gallerini, R. & Sciomachen, A.**351-361 Sensitivity and parametric bound analysis for a single pass machining problem***by*Yacout, S. M.**362-367 A mixed-integer programming model for a class of assortment problems***by*Chen, Chin-Sheng & Sarin, Sanjiv & Ram, Balasubramanian**368-382 A branch-and-bound method for multicommodity location with balancing requirements***by*Crainic, Teodor Gabriel & Delorme, Louis & Dejax, Pierre**383-399 Lagrangean heuristics for location problems***by*Beasley, J. E.**400-406 Group centre and group median of a tree***by*Gupta, S. K. & Punnen, Abraham P.**407-416 A convex form of the quadratic assignment problem***by*White, Douglas J.**417-424 Dorn's duality for quadratic programs revisited: The nonconvex case***by*Sherali, Hanif D.

### 1993, Volume 65, Issue 2

**147-158 Facility siting and integer-friendly programming***by*ReVelle, Charles**159-174 Multi-level lot-sizing in a rayon yarn company: A case study***by*Gunasekaran, A. & Goyal, S. K. & Martikainen, T. & Yli-Olli, P.**175-186 Inventory models with general backorder costs***by*Chen, Fangruo & Zheng, Yu-Sheng**187-198 A due date assignment algorithm for multiproduct manufacturing facilities***by*Luss, Hanan & Rosenwein, Moshe B.**199-206 Note on utilizing stochastic optimal control in aggregate production planning***by*Love, C. E. & Turner, M.**207-217 The controlled rounding problem: Complexity and computational experience***by*Kelly, James P. & Golden, Bruce L. & Assad, Arjang A.**218-234 The maximum benefit Chinese postman problem and the maximum benefit traveling salesman problem***by*Malandraki, Chryssi & Daskin, Mark S.**235-246 Choice of the best time scale for system reliability analysis***by*Kordonsky, Kh. B. & Gertsbakh, I. B.**247-258 Tandem behavior of a telecommunication system with repeated calls: II, A general case without buffers***by*Pourbabai, Behnam**259-269 Machine interference problem with a random environment***by*Sztrik, J. & Bunday, B. D.**270-273 Sample path properties of the G/D/m queue***by*Fu, Michael C. & Hu, Jian-Qiang**274-277 Computational experience with an optimal procedure for the scheduling of activities to maximize the net present value of projects***by*Herroelen, Willy S. & Gallens, Els**278-288 Osipov: The `Russian Lanchester'***by*Helmbold, Robert L.

### 1993, Volume 65, Issue 1

**1-3 Multiple objectives in transportation network design and routing***by*Current, John**4-19 Multiobjective transportation network design and routing problems: Taxonomy and annotation***by*Current, John & Marsh, Michael**20-32 Indirect covering tree problems on spanning tree networks***by*Hutson, Vicki Aaronson & ReVelle, Charles**33-43 Multiobjective routing of hazardous materials in stochastic networks***by*Wijeratne, Ajith B. & Turnquist, Mark A. & Mirchandani, Pitu B.**44-57 The multiobjective equilibrium network design problem revisited: A simulated annealing approach***by*Friesz, Terry L. & Anandalingam, G. & Mehta, Nihal J. & Nam, Keesung & Shah, Samir J. & Tobin, Roger L.**58-67 Interactive decision support for multiobjective transportation problems***by*Climaco, Jaao N. & Henggeler Antunes, C. & Alves, Maria J.**68-95 Further results on the probabilistic traveling salesman problem***by*Bertsimas, Dimitris & Howell, Louis H.**96-117 Safety stock allocation in a two-echelon distribution system***by*Tempelmeier, Horst**118-137 Exact analysis of production lines with no intermediate buffers***by*Papadopoulos, H. T. & O'Kelly, M. E. J.**138-139 Limits on the analytic hierarchy process from its consistency index***by*Kuenz Murphy, Catherine**140-142 The OR/MS contribution to maintenance management Comment on "Maintenance management decision making"***by*Ormerod, R. J.

### 1993, Volume 64, Issue 3

**327-337 Modelling and databases***by*Beynon-Davies, P. & Hutchings, A. R.**338-353 Fisheries development planning in Kuwait: An integer programming model***by*Khorshid, Motaz**354-362 Economic planning in industrial wastewater systems using O.R. techniques and WODA package***by*de Araujo, Maria Madalena Teixeira**363-369 Hierarchical mathematical programming for operational planning in a process industry***by*Rutten, W. G. M. M.**370-383 Optimal file management in a hybrid storage system***by*Klastorin, T. D. & Moinzadeh, K. & Diehr, G. & Han, B.**384-392 A unified approach to AHP with linking pins***by*Schoner, Bertram & Wedley, William C. & Choo, Eng Ung**393-409 Using central prices in the decomposition of linear programs***by*Goffin, J. -L. & Haurie, A. & Vial, J. -Ph. & Zhu, D. L.**410-422 Minimising trim loss in cutting rectangular blanks of a single size from a rectangular sheet using orthogonal guillotine cuts***by*Agrawal, P. K.**423-431 Determining stock-sheet-sizes to minimise trim loss***by*Agrawal, P. K.**432-441 Modeling vehicle routing with uncertain demands as a stochastic program: Properties of the corresponding solution***by*Dror, Moshe**442-448 n-Person cooperative games with transferable utility: I. The formation of coalitions***by*Ball, M. A.**449-456 n-Person cooperative games with transferable utility: II. Side-payment distribution and equilibrium coalition trees for indissoluble coalitions***by*Ball, M. A. & Xiaoguang, Li**457-461 The consequences for manufacturers of changes in retail distribution***by*Mercer, Alan

### 1993, Volume 64, Issue 2

**153-155 Editorial***by*Carlier, Jacques & Tavares, Luis**156-167 A new lower bound for the job-shop scheduling problem***by*Brucker, Peter & Jurisch, Bernd**168-187 Resource-constrained multi-project scheduling with tardy costs: Comparing myopic, bottleneck, and resource pricing heuristics***by*Lawrence, Stephen R. & Morton, Thomas E.**188-198 Scheduling a project to maximize its net present value: An integer programming approach***by*Yang, Kum Khiong & Talbot, F. Brian & Patterson, James H.**199-215 Resource allocation via dynamic programming in activity networks***by*Elmaghraby, Salah E.**216-228 The social psychology of project management conflict***by*Jones, Robert E. & Deckro, Richard F.**229-248 A revised critical path method for networks including both overlap relationships and variable-duration activities***by*Leachman, Robert C. & Kim, Sooyoung**249-257 The two-machine flow shop problem with arbitrary precedence relations***by*McMahon, Graham B. & Lim, Chong-John**258-277 Scheduling with monotonous earliness and tardiness penalties***by*Kahlbacher, Helmut G.**278-285 Benchmarks for basic scheduling problems***by*Taillard, E.**286-294 PERT and crashing revisited: Mathematical generalizations***by*Foldes, Stephan & Soumis, Francois**295-311 Early-tardy cost trade-offs in resource constrained projects with cash flows: An optimization-guided heuristic approach***by*Padman, Rema & Smith-Daniels, Dwight E.**312-325 Hierarchical models for multi-project planning and scheduling***by*Speranza, M. Grazia & Vercellis, Carlo

### 1993, Volume 64, Issue 1

**2-11 Economic and environmental power dispatch***by*Petrovic, Radivoj & Kralj, Branimir**12-20 Production planning for an artists studio -- A case study***by*Hendry, L. C. & Elings, P. & Pegg, D.**21-37 SIBILLA: An implementation of an intelligent library management system***by*Patrizi, Giacomo**38-44 A Markov decision algorithm for optimal pest control through uniform catastrophes***by*Kyriakidis, E. G.**45-60 Analysis of asymmetric patrolling repairman systems***by*Das, Tapas K. & Wortman, Martin A.**61-67 Streamlined computation for data envelopment analysis***by*Ali, Agha Iqbal**68-82 The linear balancing flow problem***by*Andreatta, Giovanni & Filippi, Carlo & Romanin-Jacur, Giorgio**83-102 Determining profit-maximizing production/shipping policies in a one-to-one direct shipping, stochastic demand environment***by*Chien, T. William**103-114 Solving large scale generalized assignment problems -- An aggregation / disaggregation approach***by*Hallefjord, Asa & Jornsten, Kurt O. & Varbrand, Peter**115-125 An interactive multiobjective nonlinear programming procedure***by*M'silti, Abdelhalim & Tolla, Pierre**126-137 A new interactive algorithm for multi-objective linear programming using maximally changeable dominance cone***by*Kim, Soung Hie & Gal, Tomas**138-151 On the computational complexity of (maximum) shift class scheduling***by*Kolen, Antoon W. J. & Kroon, Leo G.

### 1992, Volume 63, Issue 3

**361-375 Multiple criteria decision support - A review***by*Korhonen, Pekka & Moskowitz, Herbert & Wallenius, Jyrki**376-397 Optimal positioning of new product-concepts: Some analytical implications and empirical results***by*Eliashberg, Jehoshua & Manrai, Ajay K.**398-408 Towards a theory of determining size in multi-objective service systems***by*Friedman, Lea & Mehrez, Abraham**409-422 Cell formation in manufacturing systems through simulated annealing: An experimental evaluation***by*Venugopal, V. & Narendran, T. T.**423-431 Routing and buffer allocation models for a telecommunication system with heterogeneous devices***by*Pourbabai, Behnam & Seidmann, Abraham**432-444 License class design: complexity and algorithms***by*Kolen, Antoon W. J. & Kroon, Leo G.**445-462 Exact computational analysis of waiting-time distributions of single-server bulk-arrival queues: MX/G/1***by*Chaudhry, M. L. & Gupta, U. C.**463-477 Performance bounds on multiserver exponential tandem queues with finite buffers***by*So, Kut C. & Chin, Ke-tsai E.

### 1992, Volume 63, Issue 2

**135-140 Operations research in facility planning: Introduction to the special issue***by*de Silva, Anura H.**141-150 Identification of transshipment center locations***by*Bhaskaran, Sita**151-163 Locating and sizing road maintenance depots***by*Rose, Geoff & Bennett, David W. & Evans, Alex T.**164-172 An application of sizing service territories***by*Rosenfield, Donald B. & Engelstein, Israel & Feigenbaum, David**173-191 Tandem AGV systems: A partitioning algorithm and performance comparison with conventional AGV systems***by*Bozer, Yavuz A. & Srinivasan, Mandyam M.**192-206 A heuristic for machine scheduling at general mail facilities***by*Jarrah, Ahmad I. Z. & Bard, Jonathan F. & de Silva, Anura H.**207-221 A model for equipment replacement due to technological obsolescence***by*Nair, Suresh K. & Hopp, Wallace J.**222-230 An O(nm) algorithm for a special case of the multimedian location problem on a tree***by*Chhajed, Dilip & Lowe, Timothy J.**231-239 Determination of minimum number of sensors and their locations for an automated facility: An algorithmic approach***by*Pandit, Ram & Ferreira, Placid M.**240-253 Design of tool magazine and operational areas for a multi-tool machine***by*Koulamas, Christos P.**254-270 An application-based agenda for incorporating OR into an AI design environment for facility design***by*Cohen, Robert M. & May, Jerrold H.**271-286 Dynamic layout design given a scenario tree of probable futures***by*Montreuil, Benoit & Laforge, Andree**287-303 Algorithms for robust single and multiple period layout planning for manufacturing systems***by*Kouvelis, Panagiotis & Kurawarwala, Abbas A. & Gutierrez, Genaro J.**304-321 An interactive layout heuristic based on hexagonal adjacency graphs***by*Goetschalckx, Marc**322-346 Genetic algorithms, function optimization, and facility layout design***by*Kar Yan Tam**347-359 Modeling uncertainties in plant layout problems***by*Palekar, Udatta S. & Batta, Rajan & Bosch, Robert M. & Elhence, Sharad

### 1992, Volume 63, Issue 1

**1-34 Product warranty management -- III: A review of mathematical models***by*Murthy, D. N. P. & Blischke, W. R.**35-53 Optimal inspection policies for a manufacturing station***by*Cassandras, Christos G. & Han, Youngnam**54-65 Profit-based FMS dynamic part type selection over time for mid-term production planning***by*Stecke, Kathryn E. & Toczylowski, Eugeniusz**66-75 Optimal control of work-in-process with dual limit switches in two-stage transfer line***by*Hwang, Hark & Koh, Shie-Gheun**76-85 Pseudorandom number generators for supercomputers and classical computers: A practical introduction***by*Kleijnen, Jack P. C. & Annink, Ben**86-101 Modelling (s, Q) inventory systems: Parametric versus non-parametric approximations for the lead time demand distribution***by*Strijbosch, L. W. G. & Heuts, R. M. J.**102-113 On subsidiary problems in geometric programming***by*Rajgopal, Jayant & Bricker, Dennis L.**114-123 Unboundedness of a convex quadratic function subject to concave and convex quadratic constraints***by*Caron, R. J. & Obuchowska, W.**124-132 Network reduction for the acyclic constrained shortest path problem***by*Hassan, Mohsen M. D.

### 1992, Volume 62, Issue 3

**261-281 Product warranty management -- II: An integrated framework for study***by*Murthy, D. N. P. & Blischke, W. R.**282-293 Information processing in a three-actions dynamic decision model***by*Jammernegg, Werner & Kischka, Peter**294-301 Fuzzy job sequencing for a flow shop***by*McCahon, Cynthia S. & Lee, E. Stanley**302-310 Single machine scheduling with coefficient of variation minimization***by*Raghavachari, M. & Zammouri, M.**311-322 Lead-time variability reduction in stochastic inventory models***by*Paknejad, M. Javad & Nasri, Farrokh & Affisco, John F.**323-339 The multicovering problem***by*Hall, Nicholas G. & Hochbaum, Dorit S.**340-353 Steady-state approximations for a multi-echelon multi-indentured repairable-item inventory system***by*Gupta, Amit & Albright, S. Christian**354-362 Efficient solutions for the linear bilevel programming problem***by*Wen, Ue-Pyng & Hsu, Shuh-Tzy**363-371 The maximum-capture hierarchical location problem***by*Serra, Daniel & Marianov, Vladimir & ReVelle, Charles**372-379 Sampling for quality inspection and correction: AOQL performance criteria***by*Kleijnen, J. P. C. & Kriens, J. & Lafleur, M. C. H. M. & Pardoel, J. H. F.

### 1992, Volume 62, Issue 2

**127-148 Product warranty management -- I: A taxonomy for warranty policies***by*Blischke, W. R. & Murthy, D. N. P.**149-162 Distribution system planning through a generalized Benders decomposition approach***by*Benchakroun, A. & Ferland, J. A. & Cleroux, R.**163-174 GBSSS: The generalized big square small square method for planar single-facility location***by*Plastria, Frank**175-185 Multinational acquisition analysis: A zero-one goal programming model***by*Schniederjans, Marc J. & Hoffman, James**186-193 A neural design for solution of the maximal independent set problem***by*Burke, Laura I.**194-202 A location problem on unicyclic networks: Balanced case***by*Kiran, Ali S. & Tamer Unal, Ali & Karabati, Selcuk**203-209 A multicriteria Pareto-optimal path algorithm***by*Tung Tung, Chi & Lin Chew, Kim**210-220 Oriented aligned rectangle packing problem***by*Agarwal, Pankaj Kumar & Shing, Man-Tak**221-240 On the design of a finite-capacity queue with phase-type service times and hysteretic control***by*Neuts, Marcel F. & Rao, B. M.**241-251 Partial maintainability and control in nonhomogeneous Markov manpower systems***by*Georgiou, A. C.

### 1992, Volume 62, Issue 1

**1-10 Integrated procurement-production systems: A review***by*Goyal, S. K. & Deshmukh, S. G.**11-26 Numerical analysis of a continuous-review lost-sales inventory model where two orders may be outstanding***by*Hill, Roger M.**27-37 Restricted neighborhood in the tabu search for the flowshop problem***by*Adenso-Diaz, Belarmino**38-46 Flow-shops with a dominant machine***by*van den Nouweland, Anne & Krabbenborg, Marc & Potters, Jos**47-54 Selection of parts and machines for cellularization: A mathematical programming approach***by*Rajamani, Divakar & Singh, N. & Aneja, Y. P.**55-73 Linear mean value cross decomposition: A generalization of the Kornai-Liptak method***by*Holmberg, Kaj**74-84 Estimation of returns to scale using data envelopment analysis***by*Banker, Rajiv D. & Thrall, R. M.**85-95 A complementary greedy heuristic for the knapsack problem***by*White, D. J.**96-104 Review of a Markov decision algorithm for optimal inspections and revisions in a maintenance system with partial information***by*Wijnmalen, D. J. D. & Hontelez, J. A. M.**105-115 Optimal design of a distributed network with a two-level hierarchical structure***by*Chung, Sung-hark & Myung, Young-soo & Tcha, Dong-wan**116-117 RLP: A program package for solving restricted 1-facility location problems in a user friendly environment***by*Nickel, S. & Hamacher, H. W.

### 1992, Volume 61, Issue 3

**255-272 Aggregate production planning -- A survey of models and methodologies***by*Nam, Sang-jin & Logendran, Rasaratnam**273-291 Planning and scheduling approaches to operate a particular FMS***by*Stecke, Kathryn E.**292-298 The use of domains in multicriteria decision making***by*Eiselt, H. A. & Laporte, Gilbert**299-305 An iterative SOR algorithm for multi-period spatial equilibria***by*Guder, F.**306-317 A logic approach to the resolution of constraints in timetabling***by*Kang, Le & White, George M.**318-325 An efficient heuristic approach to the scheduling of jobs in a flowshop***by*Rajendran, Chandrasekharan & Chaudhuri, Dipak**326-344 An algorithm for storage device selection and file assignment***by*Han, Bernard T. & Diehr, George**345-356 On balancing variances of station processing times in unpaced lines***by*Lau, Hon-Shiang**357-369 On simulation and optimization of macroeconometric models***by*Engels, J. R.

### 1992, Volume 61, Issue 1-2

**1-5 The IFORS-SPC 1 conference, Bruges, Belgium, March 26-29, 1991***by*Brans, J. P. & Jelassi, T.**6-17 Rule-based simulation metamodels***by*Pierreval, Henri**18-29 Production planning knowledge-based system for pharmaceutical manufacturing lines***by*Artiba, A. & Tahon, C.**30-40 A DSS for optimizing the aggregate production planning at Monsanto Antwerp***by*Bloemen, R. & Maes, J.**41-47 A taxonomy for supporting the development of computer-based production planning and control systems***by*Price, D. H. R. & Sharp, J. A. & Muhlemann, A. P.**48-56 Sensitivity analysis for Horn formulae***by*Marcucci, Cristina & Schoen, Fabio**57-71 Aligning DSS development with organization development***by*Salmela, Hannu & Ruohonen, Mikko**72-85 Towards a DEISS?***by*Thiriez, Herve**86-97 Blackboard metaphor in tactical decision making***by*Vranes, Sanja & Lucin, Mario & Stanojevic, Mladen & Stevanovic, Violeta & Subasic, Pero**98-105 Towards strategic accounting in product management: Implementing a holistic approach in a data and methods base for managerial accounting***by*Back-Hock, Andrea**106-113 A DSS approach to urban traffic management***by*Bielli, Maurizio**114-121 Expert systems in management and administration - are they really different from Decision Support Systems?***by*Edwards, John S.**122-134 Contrasting successful and unsuccessful expert systems***by*Duchessi, Peter & O'Keefe, Robert M.**135-144 On the integration of an interactive MOLP procedure base and expert system techniques***by*Henggeler Antunes, C. & Paulo Melo, M. & Climaco, Joao N.**145-153 Designing decision support systems and expert systems with a better end-use involvement: a promising approach***by*Despres, Sylvie & Rosenthal-Sabroux, Camille**154-164 New directions in software for strategic choice***by*Friend, John**165-185 Consensus in distributed soft environments***by*Carlsson, Christer & Ehrenberg, Dieter & Eklund, Patrik & Fedrizzi, Mario & Gustafsson, Patrik & Lindholm, Paul & Merkuryeva, Galina & Riissanen, Tony & G.S. Ventre, Aldo**186-194 Ranking methods for valued preference relations : A characterization of a method based on leaving and entering flows***by*Bouyssou, D. & Perny, P.**195-203 A preference-preserving projection technique for MCDM***by*Vetschera, Rudolf**204-214 A management tool for indicator-supported systems: A public health service application***by*Carrizosa, E. & Conde, E. & Fernandez, F. R. & Puerto, J.**215-218 A multicriteria scheduling tool using a branch-and-bound algorithm***by*Bausch, Raymond**219-229 An evaluation of multicriteria analysis for DSS in public policy decision***by*Mladineo, N. & Lozic, I. & Stosic, S. & Mlinaric, D. & Radica, T.**230-244 A multicriterion view of optimal resource allocation in job-shop production***by*Gravel, Marc & Martel, Jean Marc & Nadeau, Raymond & Price, Wilson & Tremblay, Richard**245-253 Two multiple criteria group decision support systems based on mathematical programming and ranking methods***by*Iz, Peri H.

### 1992, Volume 60, Issue 3

**233-246 Workforce staffing and scheduling: Hospital nursing specific models***by*Siferd, Sue Perrott & Benton, W. C.**247-259 A review of stochastic modelling of delay and capacity at unsignalized priority intersections***by*Cheng, T. C. E. & Allam, S.**260-272 A survey of algorithms for the generalized assignment problem***by*Cattrysse, Dirk G. & Van Wassenhove, Luk N.**273-279 Approximation algorithms for three-dimensional assignment problems with triangle inequalities***by*Crama, Yves & Spieksma, Frits C. R.**280-286 A computer graphics-based Decision Support System for multiple objective linear programming***by*Korhonen, Pekka & Wallenius, Jyrki & Zionts, Stanley**287-295 Projection algorithms for linear programming***by*Betke, U. & Gritzmann, P.**296-305 A barrier method for dynamic Leontief-type linear programs***by*Yang, Eugene K. & Hwang, Wei-Shi**306-314 Generalized bilinear programming: Part I. Models, applications and linear programming relaxation***by*Al-Khayyal, Faiz A.**315-326 Weakly redundant constraints and their impact on postoptimal analyses in LP***by*Gal, Tomas**327-334 Simulated annealing applied to the process allocation problem***by*Sofianopoulou, Stella**335-343 On tightening cover induced inequalities***by*Dietrich, B. L. & Escudero, L. F.