# Elsevier

# European Journal of Operational Research

**Download restrictions:**Full text for ScienceDirect subscribers only

**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

**Citations RSS feed:**at CitEc

### Impact factors

- Simple (last 10 years)
- Recursive (10)
- Discounted (10)
- Recursive discounted (10)
- H-Index (10)
- Aggregate (10)

**Access and download statistics**

**Top item:**

- By citations
- By downloads (last 12 months)

### 1994, Volume 73, Issue 1

**114-126 The median tour and maximal covering tour problems: Formulations and heuristics***by*Current, John R. & Schilling, David A.**127-131 An approximation algorithm for the license and shift class design problem***by*Jansen, Klaus**132-138 Discharge allocation for hydro-electric generating stations***by*Klein, E. M. & Sim, S. H.**139-143 Some results concerning post-infeasibility analysis***by*Chakravarti, Nilotpal**144-149 A note on deriving weights from pairwise comparison ratio matrices***by*Hashimoto, Akihiro**150-163 Constructing the set of efficient objective values in linear multiple objective transportation problems***by*Gallagher, Richard J. & Saleh, Ossama A.**164-166 Characterizing an optimal solution to the linear bilevel programming problem***by*Liu, Yi-Hsin & Hart, Stephen M.**167-168 On the Dietrich-Escudero approach for solving the 0-1 knapsack problem with a 0-1 objective function***by*Escudero, L. F. & Perez, G. & Garin, A.**169-171 A computational note on the Martello-Toth knapsack algorithm***by*Vasko, Francis J.**172-174 The Newton direction and the cutting plane***by*Gaudioso, M. & Monaco, M. F.**175-180 On the generalized 2-peripatetic salesman problem***by*De Kort, J. B. J. M. & Volgenant, A.**181-184 An experimental comparison of three heuristics for the WVCP***by*Laursen, Per. S.**185-187 Comment on elmaghraby and herroelen's "The scheduling of activities to maximize the net present value of projects"***by*Sepil, Canan**188-191 A computational improvement for a shortest paths ranking algorithm***by*de Azevedo, JoseAugusto & Silvestre Madeira, Joaquim Joao E. R. & Vieira Martins, Ernesto Q. & Pires, Filipe Manuel A.**192-198 A linear time algorithm to solve the weighted perfect domination problem in series-parallel graphs***by*Yen, Chain-Chin & Lee, R. C. T.**199-204 The growth of multi-constraint random knapsacks with various right-hand sides of the constraints***by*Szkatula, Krzysztof

### 1994, Volume 72, Issue 3

**443-459 Rough set approach to multi-attribute decision analysis***by*Pawlak, Zdzisaw & Sowinski, Roman**460-468 Blending modelling in a process manufacturing: A case study***by*Ashayeri, J. & van Eijs, A. G. M. & Nederstigt, P.**469-484 The process of multiattribute decision making: A case study of selecting applicants for a Ph.D. program***by*Davey, Anne & Olson, David & Wallenius, Jyrki**485-502 A dynamic model of manufacturing quality's effect on optimal advertising and pricing policies***by*Narasimhan, Ram & Ghosh, Soumen**503-517 Coordination of production and distribution planning***by*Chandra, Pankaj & Fisher, Marshall L.**518-528 Energy planning under import restrictions***by*Guven, Caglar**529-544 Batch-scheduling problems to minimize actual flow times of parts through the shop under JIT environment***by*Halim, Abdul Hakim & Miyazaki, Shigeji & Ohta, Hiroshi**545-557 Capacitated lot sizing under setup learning***by*Pratsini, Eleni & Camm, Jeffrey D. & Raturi, Amitabh S.**558-573 Performance approximation of pick-to-belt orderpicking systems***by*de Koster, Rene**574-587 Nonlinear integer bilevel programming***by*Jan, Rong-Hong & Chern, Maw-Sheng**588-597 A graph approximation heuristic for the vertex cover problem on planar graphs***by*Meek, D. L. & Gary Parker, R.**598-601 Homogeneity and clustering in AHP ensures the validity of the scale***by*Saaty, Thomas L.**602-606 Modelling location and sizing of offshore platforms***by*Hansen, Pierre & de Luna Pedrosa Filho, Eugenio & Carneiro Ribeiro, Celso**607-609 The multi-level uncapacitated facility location problem is not submodular***by*Barros, A. I. & Labbe, M.

### 1994, Volume 72, Issue 2

**213-609 Editorial***by*Hurlimann, Tony & Editor, Guest**214-242 SYMMS: A model management system that supports model reuse, sharing, and integration***by*Muhanna, Waleed A.**243-261 Issues in the design of modeling languages for mathematical programming***by*Maturana, Sergio V.**262-276 Tools for reformulating logical forms into zero-one mixed integer programs***by*Mitra, G. & Lucas, C. & Moody, S. & Hadjiconstantinou, E.**277-286 gLPS: A graphical tool for the definition and manipulation of linear problems***by*Collaud, Gerald & Pasquier-Boltuck, Jacques**287-299 A tool for network modeling***by*Forster, M. & Mevert, P.**300-311 Syntax-directed report writing in linear programming using ANALYZE***by*Greenberg, Harvey J.**312-322 MOPS -- Mathematical optimization system***by*Suhl, Uwe H.**323-332 Simulation for planning services for patients with coronary artery disease***by*Davies, R.**333-349 Effect of quality loss functions on the economic design of process control charts***by*Moskowitz, Herbert & Plante, Robert & Hak Chun, Young**350-363 An algorithm for computing the economically optimal -control chart for a process with multiple assignable causes***by*Chung, Kun-Jen**364-375 Polynomial metamodelling and Taguchi designs in simulation with application to the maintenance float system***by*Kuei, Chu-Hua & Madu, Christian N.**376-386 The relaxation time heuristic for the initial transient problem in M/M/k queueing systems***by*Roth, Emily**387-405 Integer programming formulations of discrete hub location problems***by*Campbell, James F.**406-416 A comparative study of computational procedures for the resource constrained project scheduling problem***by*Oguz, Osman & Bala, Hasan**417-431 An interactive procedure using domination cones for bicriterion shortest path problems***by*Murthy, Ishwar & Olson, David L.**432-442 The p maximal cover - p partial center problem on networks***by*Berman, Oded

### 1994, Volume 72, Issue 1

**1-3 Style and principles***by*Mercer, Alan & Bernhard Tilanus, C. & Zimmermann, Hans-Jurgen**4-22 Second order mathematical programming formulations for discriminant analysis***by*Silva, Antonio Pedro Duarte & Stam, Antonie**23-28 On the performance of linear programming heuristics applied on a quadratic transformation in the classification problem***by*Banks, William J. & Abad, Prakash L.**29-31 A comment regarding polynomial discriminant functions***by*Rubin, P. A.**32-42 Engineering applications of operations research***by*Levary, Reuven R.**43-51 Evaluation of junior colleges of technology: The Taiwan case***by*Kao, Chiang**52-61 Optimal prices and order quantities when temporary price discounts result in increase in demand***by*Ardalan, Alireza**62-73 Studying the effects of production loss due to setup in dynamic production scheduling***by*de Matta, Renato & Guignard, Monique**74-81 An approximation algorithm for a single-machine scheduling problem with release times, delivery times and controllable processing times***by*Nowicki, Eugeniusz**82-101 Study of a NP-hard cyclic scheduling problem: The recurrent job-shop***by*Hanen, Claire**102-114 Comparative performance analysis of priority rules in a constrained flow shop with multiple processors environment***by*Hunsucker, J. L. & Shah, J. R.**115-124 An exact algorithm for multiple depot bus scheduling***by*Forbes, M. A. & Holt, J. N. & Watts, A. M.**125-134 A polynomial algorithm for the [n/m/0, tij = 1, tree/Cmax] open shop problem***by*Brasel, H. & Kluge, D. & Werner, F.**135-145 A methodology for solvng multi-objective simulation-optimization problems***by*Teleb, Radi & Azadivar, Farhad**155-166 An active constraints Newton algorithm for the spatial price equilibrium problem***by*Drissi-Kaitouni, Omar & Florian, Michael**167-174 A set partitioning heuristic for the generalized assignment problem***by*Cattrysse, Dirk. G. & Salomon, Marc & Van Wassenhove, Luk N.**175-191 Aggregation and decomposition for multi-divisional linear programs***by*Jornsten, Kurt & Leisten, Rainer**192-199 On the efficient point set of tricriteria linear programs***by*Fruhwirth, Bernd & Mekelburg, Karsten**200-203 An alternative explanation of disjunctive formulations***by*Williams, H. P.**204-206 Considering offshore production platforms***by*Rosing, K. E.**207-208 Understanding the competitive process : A guide to effective intervention in the small firms sector -- a comment***by*Hamilton, R. T.**209-210 Understanding the competitive process : A guide to effective intervention in the small firms sector -- a comment***by*Hamilton, R. T.

### 1993, Volume 71, Issue 3

**325-333 Ship scheduling: The last decade***by*Ronen, David**334-340 Optimal scheduling of a hydro thermal power generation system***by*Oliveira, P. & McKee, S. & Coles, C.**341-352 A multiple criteria model for new telecommunication service planning***by*Antunes, Carlos Henggeler & Craveirinha, JoseF. & Climaco, Joao N.**353-365 Operating a flexible assembly line: To control the bottleneck***by*Pourbabai, Behnam**366-378 Openshops with jobs overlap***by*Wagneur, E. & Sriskandarajah, C.**379-397 A goal-programming method of stochastic allocative data envelopment analysis***by*Retzlaff-Roberts, Donna L. & Morey, Richard C.**398-418 A model management solution system for multicommodity network flows***by*Lari, Ali Reza & Nag, Barin N.**419-438 Dynamic equilibria in transport systems***by*Sever, Vital**439-453 Equilibria in a stochastic resource management game under imperfect information***by*Kaitala, Veijo**454-462 Conditions for government support of private research and development***by*Brockhoff, Klaus & Warschkow, Kai

### 1993, Volume 71, Issue 2

**151-153 Seventh EURO summer Institute***by*Bianco, Lucio & Bielli, Maurizio & Speranza, Maria Grazia**154-176 A unified description of iterative algorithms for traffic equilibria***by*Patriksson, Michael**177-187 The existence of equivalent mathematical programs for certain mixed equilibrium traffic assignment problems***by*Bennett, Lloyd D.**188-204 A variational inequality formulation of the Dynamic Traffic Assignment Problem***by*Drissi-Kaitouni, Omar**205-221 Cost versus time equilibrium over a network***by*Leurent, Fabien**222-234 Individual controlled junctions: Optimal design***by*Bruno, Giuseppe & Improta, Gennaro**235-246 Hierarchical dispatching control of urban traffic systems***by*Gegov, Alexander E.**247-256 Knowledge-based system for the completion of traffic data***by*Kirschfink, Heribert**257-268 Investment planning for urban roads***by*Christiansen, Marielle**269-287 A stochastic user equilibrium assignment model for the evaluation of parking policies***by*Bifulco, Gennaro Nicola**288-302 A comparative analysis of different specifications of modal choice models in an urban area***by*Postorino, Maria Nadia**303-316 State space relaxation for set covering problems related to bus driver scheduling***by*Paias, Ana & Paixao, J.**317-323 Integrated optimal flow control in traffic networks***by*Moreno Banos, Juan Carlos & Papageorgiou, Markos & Schaffner, Clemens

### 1993, Volume 71, Issue 1

**1-16 Graph theoretical issues in computer networks***by*Blazwicz, Jacek & Brzezinski, Jerzy & Gambosi, Giorgio**17-31 Analytical loading models in flexible manufacturing systems***by*Kirkavak, Nureddin & Dincer, Cemal**32-44 Positioning of automated guided vehicles in a loop layout to improve response time***by*Egbelu, Pius J.**45-60 Entropy of plagues: A measure for assessing the loss of social cohesion due to epidemics***by*Carvalho-Rodrigues, F. & Dockery, J. & Rodrigues, T.**61-69 Implied constraints and a unified theory of duality in linear and nonlinear programming***by*Johri, Pravin K.**70-79 Estimating the mean completion time of PERT networks with exponentially distributed durations of activities***by*Magott, Jan & Skudlarski, Kamil**80-94 Selecting control variates to estimate multiresponse simulation metamodels***by*de O. Porta Nova, Acacio M. & Wilson, James R.**95-109 Valid inequalities and projecting the multicommodity extended formulation for uncapacitated fixed charge network flow problems***by*Rardin, Ronald L. & Wolsey, Laurence A.**110-119 Procurement of prescribed sizes: A Markovian approach***by*Robb, David John**120-129 Hardware configuration for StarLAN 10 local area networks: An application of integer programming***by*Rosenberg, Eric**130-132 The multi-level uncapacitated facility location problem is not submodular***by*Barros, A. I. & Labbe, M.

### 1993, Volume 70, Issue 3

**269-271 Editorial***by*Gupta, J. N. D. & Potts, C. N.**272-288 On scheduling to minimize earliness-tardiness and batch delivery costs with a common due date***by*Herrmann, Jeffrey W. & Lee, Chung-Yee**289-303 Minimizing flow time variance in a single machine system using genetic algorithms***by*Gupta, Mahesh C. & Gupta, Yash P. & Kumar, Anup**304-310 A heuristic for the single machine tardiness problem***by*Panwalkar, S. S. & Smith, M. L. & Koulamas, C. P.**311-315 A note on optimal assignment of slack due-dates in single-machine scheduling***by*Gordon, V. S.**316-326 Algorithms for preemptive scheduling of different classes of processors to do jobs with fixed times***by*Reddy Dondeti, V. & Emmons, Hamilton**327-334 A priority rule for minimizing weighted flow time in a class of parallel machine scheduling problems***by*Webster, S. T.**335-341 Two parallel machine sequencing problems involving controllable job processing times***by*Alidaee, Bahram & Ahmadian, Ahmad**342-349 An approximation algorithm for the m-machine permutation flow shop scheduling problem with controllable processing times***by*Nowicki, Eugeniusz**350-364 The complexity of scheduling jobs in repetitive manufacturing systems***by*Kamoun, H. & Sriskandarajah, C.**365-378 Performance of scheduling algorithms for no-wait flowshops with parallel machines***by*Sriskandarajah, C.**379-390 Worst-case analysis of heuristics for open shops with parallel machines***by*Chen, Bo & Strusevich, Vitaly A.**391-404 Two machine open shop scheduling problem to minimize an arbitrary machine usage regular penalty function***by*Shakhlevich, N. V. & Strusevich, V. A.**405-424 On scheduling influential stochastic tasks on a single machine***by*Glazebrook, K. D. & Greatrix, S.**425-431 Job selection and sequencing on a single machine in a random environment***by*De, Prabuddha & Ghosh, Jay B. & Wells, Charles E.**432-435 Some remarks about the `equivalence' of performance measures in scheduling problems***by*Gerchak, Yigal & Magazine, Michael J.

### 1993, Volume 70, Issue 2

**135-149 Risk-value models***by*Sarin, Rakesh K. & Weber, Martin**150-158 Planning and scheduling packaging lines in food industry***by*Claassen, G. D. H. & van Beek, P.**159-166 Network planning for scheduling operations in air cargo handling: a tool in medium term goodsflow control***by*Verwijmeren, M. A. A. P. & Tilanus, C. B.**167-176 A system dynamics model for AIDS policy support in Tanzania***by*Heidenberger, Kurt & Flessa, Steffen**177-190 Set-up saving schemes for printed circuit boards assembly***by*Maimon, Oded Z. & Dar-El, Ezey M. & Carmon, Tali F.**191-198 Optimal allocation of time in a hospital pharmacy using goal programming***by*Ghandforoush, Parviz**199-211 A comparison of centralized and decentralized control rules in push-type production ordering systems***by*Matsuura, H. & Tsubone, H.**212-228 Approximate solution of a dynamic job shop model with several job classes***by*Legato, Pasquale**229-243 A branch and bound algorithm for symmetric 2-Peripatetic Salesman Problems***by*De Kort, Jeroen B. J. M.**244-253 A multi-objective constrained resource information system project selection method***by*Schniederjans, Marc J. & Santhanam, Radhika**254-262 A model for the assignment of candidates to constituencies in a mixed election system***by*Mason, Francesco & Tomasin, Elena Moretti**263-268 On some useful properties of the Perron eigenvalue of a positive reciprocal matrix in the context of the analytic hierarchy process***by*Aupetit, Bernard & Genest, Christian

### 1993, Volume 70, Issue 1

**1-15 The use of mathematical programming with artificial intelligence and expert systems***by*McBride, Richard D. & O'Leary, Daniel E.**16-30 The regional urban solid waste management system: A modelling approach***by*Caruso, C. & Colorni, A. & Paruccini, M.**31-42 Designing distribution systems with transport economies of scale***by*Fleischmann, Bernhard**43-51 Simulated annealing for resource-constrained scheduling***by*Jeffcoat, David E. & Bulfin, Robert L.**52-66 Vendor selection with price breaks***by*Chaudhry, Sohail S. & Forst, Frank G. & Zydiak, James L.**67-82 An explicative model of `public' interorganizational interactions***by*Ostanello, Anna & Tsoukias, Alexis**83-103 The principal/agent paradigm: Its relevance to various functional fields***by*van Ackere, Ann**104-114 EOQ models for continuously deteriorating products using linear and exponential penalty costs***by*Fujiwara, Okitsugu & Perera, U. L. J. S. R.**115-125 Complexity of single machine, multi-criteria scheduling problems***by*Chen, Chuen-Lung & Bulfin, Robert L.**126-133 Optimizing theory of constraints when multiple constrained resources exist***by*Plenert, Gerhard

### 1993, Volume 69, Issue 3

**281-283 Editorial***by*Singh, Nanua**284-291 Design of cellular manufacturing systems: An invited review***by*Singh, N.**292-311 A work load-oriented heuristic methodology for manufacturing cell formation allowing reallocation of operations***by*Kang, Sung-Lyong & Wemmerlov, Urban**312-329 Cell formation in PCB assembly based on production quantitative data***by*Luzzatto, Dino & Perona, Marco**330-341 A mathematical model for cell formation considering investment and operational costs***by*Adil, Gajendra K. & Rajamani, Divakar & Strong, Doug**342-356 An improved neural network leader algorithm for part-machine grouping in group technology***by*Kaparthi, Shashidhar & Suresh, Nallan C. & Cerveny, Robert P.**357-372 A novel machine grouping and knowledge-based approach for cellular manufacturing***by*Chow, Wing S. & Hawaleshka, Ostap**373-383 On cell size and machine requirements planning in group technology systems***by*Sankaran, S. & Kasilingam, R. G.**384-398 Worst-case analysis of an algorithm for cellular manufacturing***by*Ng, Shu Ming**399-412 Optimization analysis of flexible cellular manufacturing: Route selection and determining the optimal production conditions for ordered products***by*Song, Sangjae & Choi, Junghee**413-423 Setup time reduction and competitive advantage in a closed manufacturing cell***by*Yang, Jiaqin & Deane, Richard H.**424-437 Manufacturing cell operating characteristics***by*Lin, Li & Chiu, Francis**438-449 A comparison of scheduling philosophies for manufacturing cells***by*Askin, Ronald G. & Iyer, Anand**450-466 A comparison of buffering strategies for the CMS routing/sequencing problem***by*Don Taylor, G. & Taha, Hamdy A.**467-481 Two-machine group scheduling problem with blocking and anticipatory setups***by*Logendran, Rasaratnam & Sriskandarajah, Chelliah**482-497 Dynamic sequencing of robot moves in a manufacturing cell***by*Liu, Shu-Chu & Lin, Li**498-509 Cellular control of manufacturing systems***by*Della Croce, F. & Menga, G. & Tadei, R. & Cavalotto, M. & Petri, L.

### 1993, Volume 69, Issue 2

**143-153 Optimal incentives and asymmetric distribution of information***by*Hartmann-Wendels, Thomas**154-165 On the (t, Sj) policy in an integrated production/inventory model with time-proportional demand***by*Hong, Jae-Dong & Cavalier, Tom M. & Hayya, Jack C.**166-176 Buffer levels and choice of material handling device in flexible manufacturing systems***by*Mahadevan, B. & Narendran, T. T.**177-186 A duopoly model of pricing for inventory liquidation***by*Bikhchandani, Sushil & Mamer, John W.**187-199 The job shop tardiness problem: A decomposition approach***by*Raman, N. & Brian Talbot, F.**200-209 Preference simulation and preference programming: robustness issues in priority derivation***by*Arbel, Ami & Vargas, Luis G.**210-220 A multicriteria evaluation of methods for obtaining weights from ratio-scale matrices***by*Golany, B. & Kress, M.**221-237 The long-term elasticity of the milk supply with respect to the milk price in the Netherlands in the period 1969-1984***by*Roemen, J. H. J.**238-243 Simulated annealing for the QAP -- Optimal tradeoff between simulation time and solution quality***by*Laursen, Per S.**244-249 A knapsack program generator of fractal curves with random stopping rule***by*Bellacicco, A. & Miccoli, L.**250-264 Approximate techniques for general closed queueing networks with subnetworks having population constraints***by*Baynat, Bruno & Dallery, Yves**265-276 Mean-variance criteria in an undiscounted Markov decision process***by*Chung, Kun-Jen

### 1993, Volume 69, Issue 1

**1-13 Integrating production and quality control policies: A survey***by*Goyal, S. K. & Gunasekaran, A. & Martikainen, T. & Yli-Olli, P.**14-25 The growth of exhaustion***by*De Greene, Kenyon B.**26-37 Energy use in Greek manufacturing, 1970-1989***by*Cosmetatos, G. & Leon, J. & Skaleou, A. & Skourtias, G.**38-49 A generalized model for determining optimal number of minimal repairs before replacement***by*Sheu, Shey-Huei**50-54 An optimal operation policy for real-time n-server stand-by systems involving preventive maintenance***by*Kreimer, Joseph & Mehrez, Abraham**55-64 Multivalued continuum systems***by*Montero, J. & Tejada, J. & Yanez, J.**65-74 Heuristic testing procedures for general coherent systems***by*Qiu, Yuping & Cox, Louis Anthony**75-82 A note on optimal replacement policy under general repair***by*Makis, Viliam & Jardine, Andrew K. S.**83-91 Training neural networks with the GRG2 nonlinear optimizer***by*Hung, Ming S. & Denton, James W.**92-96 Timetable construction with Markovian neural network***by*Kovacic, Matevz**97-106 An algorithm for the ranking of shortest paths***by*Azevedo, JoseAugusto & Santos Costa, Maria Emilia O. & Silvestre Madeira, Joaquim Joao E. R. & Vieira Martins, Ernesto Q.**107-120 Small and large TSP: Two polynomially solvable cases of the traveling salesman problem***by*van Dal, Rene & van der Veen, Jack A. A. & Sierksma, Gerard**121-130 A cutting-plane approach to the edge-weighted maximal clique problem***by*Dijkhuizen, G. & Faigle, U.**131-137 Generating the best K sequences in relocation problems***by*Lin, Bertrand Miao-Tsong & Tseng, Shian-Shyong**138-139 OR Software***by*Thiriez, Herve

### 1993, Volume 68, Issue 3

**291-303 Forecasting with scenarios***by*Bunn, Derek W. & Salo, Ahti A.**304-317 Stock index futures arbitrage in Finland: Theory and evidence in a new market***by*Puttonen, Vesa**318-333 On the individual and incremental information content of accrual earnings, cash flows and cash dividends in the Finnish stock market***by*Martikainen, Teppo & Rothovius, Timo & Yli-Olli, Paavo**334-343 Cost analysis in the time domain***by*Camm, Jeffrey D. & Gulledge, Thomas R. & Womer, Norman Keith**344-351 An interactive procedure for multiple objective integer linear programming problems***by*Karaivanova, Jasmina N. & Narula, Subhash C. & Vassilev, Vassil**352-355 A restricted class of multiobjective linear fractional programming problems***by*Dutta, D. & Rao, J. R. & Tiwari, R. N.**356-373 Approximating the noninferior set in multiobjective linear programming problems***by*Solanki, Rajendra S. & Appino, Perry A. & Cohon, Jared L.**374-378 Use of reference points for MOLP problems analysis***by*Metev, Boyan & Yordanova, Irena**379-388 Duality theory for infinite-dimensional multiobjective linear programming***by*Balbas, Alejandro & Heras, Antonio**389-399 Some experiments with simulated annealing techniques for packing problems***by*Dowsland, Kathryn A.**400-412 An algorithm for the 2D guillotine cutting stock problem***by*MacLeod, Bruce & Moll, Robert & Girkar, Mahesh & Hanifi, Nassim**413-421 An exact search for the solution of the surrogate dual of the 0-1 bidimensional knapsack problem***by*Freville, Arnaud & Plateau, Gerard**422-426 A variation of the assignment problem***by*Geetha, S. & Nair, K. P. K.**427-430 On geometric programming problems having negative degrees of difficulty***by*Bricker, Dennis L. & Choi, Jae Chul & Rajgopal, Jayant

### 1993, Volume 68, Issue 2

**145-159 Chaos in nonlinear dynamical systems exemplified by an R & D model***by*Feichtinger, Gustav & Kopel, Michael