# 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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### 1993, Volume 71, Issue 1

**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**160-172 An integrated multiobjective planning model: A case study of the Zambian copper mining industry***by*Ehie, Ike C. & Benjamin, Colin O.**173-184 A multiobjective approach to vendor selection***by*Weber, Charles A. & Current, John R.**185-195 Optimal scheduling of purchasing orders for large projects***by*Ronen, Boaz & Trietsch, Dan**196-211 Application of the scenario aggregation approach to a two-stage, stochastic, common component, inventory problem with a budget constraint***by*Jonsson, Henrik & Jornsten, Kurt & Silver, Edward A.**212-227 Due date assignment procedures with dynamically updated coefficients for multi-level assembly job shops***by*Adam, Nabil R. & Bertrand, J. Will M. & Morehead, Diane C. & Surkis, Julius**228-235 The analysis of an unreliable two-machine production line with random processing times***by*Hong, Yushin & Seong, Deokhyun**236-250 Inspection interval for maximum future reliability using the delay time model***by*Cerone, P.**251-264 Sequencing of inspection operations subject to errors***by*Raz, Tzvi & Bricker, Dennis**265-277 Algorithms for computerized inspection of rectangular and square shapes***by*Ventura, Jose A. & Dung, Zung-An**278-290 Expert systems applications development research in business: A selected bibliography (1975-1989)***by*Eom, Sean B. & Lee, Sang M. & Ayaz, Ahmed

### 1993, Volume 68, Issue 1

**1-8 Developments in implementable retailing research***by*Mercer, Alan**9-22 A methodology for competitiveness analysis and strategy formulation in glass industry***by*Oral, Muhittin**23-48 Performance characteristics of stochastic integrated production-distribution systems***by*Pyke, David F. & Cohen, Morris A.**49-68 Models for evaluating the performance of serial and assembly MRP systems***by*Lagodimos, A. G.**69-89 The throughput rate of multistation unreliable production lines***by*Heavey, C. & Papadopoulos, H. T. & Browne, J.**90-104 Stochastic analysis of a dependent parallel system***by*Pijnenburg, M. & Ravichandran, N. & Regterschot, G.**105-119 Composing batches with yield uncertainty***by*Tang, Christopher S.**120-133 Optimal ordering policies with two suppliers when lead times and demands are all stochastic***by*Lau, Hon-Shiang & Zhao, Long-Geng**134-138 Efficient post-optimization analysis procedure for the dynamic lot-sizing problem***by*Diaby, Moustapha**139-142 A conditional effect of autocorrelated demand on safety stock determination***by*Marmorstein, Howard & Zinn, Walter**143-144 OR software***by*Thiriez, Herve

### 1993, Volume 67, Issue 3

**297-320 New concepts for production planning and control***by*Zapfel, Gunther & Missbauer, Hubert**321-331 Planning laboratory staffing with a queueing model***by*Khan, M. Riaz & Callahan, Barbara B.**332-343 A Monte Carlo comparison of two production frontier estimation methods: Corrected ordinary least squares and data envelopment analysis***by*Banker, Rajiv D. & Gadh, Vandana M. & Gorr, Wilpen L.**344-357 On-line production control using the EVPI approach***by*Sinuany-Stern, Zilla & Golenko-Ginzburg, Dimitri & Keren, Baruch**358-372 Establishment of economic production rate, production batch size, and production sequence in manufacturing systems with flexible routing***by*Egbelu, Pius J.**373-386 Approximate decomposition for closed queueing network models of FMSs with a block-and-wait and state-dependent routing mechanism***by*Zhuang, Li & Hindi, Khalil S.**387-404 An integrated approach to the part selection and machine loading problem in a class of flexible manufacturing systems***by*Liang, Ming & Dutta, S. P.**405-417 Design of cellular manufacturing systems based on asymptotic forms of a boolean matrix***by*Venugopal, V. & Narendran, T. T.**418-427 File allocation involving worst case response times and link capacities: Model and solution procedure***by*Murthy, Ishwar & Ghosh, Deb**428-442 Design of private backbone networks -- I: time varying traffic***by*Chari, Kaushal & Dutta, Amitava**443-452 Design of private backbone networks -- II: time varying grouped traffic***by*Chari, Kaushal & Dutta, Amitava

### 1993, Volume 67, Issue 2

**141-160 Models for multi-plant coordination***by*Bhatnagar, Rohit & Chandra, Pankaj & Goyal, Suresh K.**161-171 Stochastic dynamic programming to support sow replacement decisions***by*Huirne, R. B. M. & Dijkhuizen, A. A. & van Beek, P. & Hendriks, Th. H. B.**172-187 Experiments with dynamic programming algorithms for nonseparable problems***by*Domingo, Alleli & Sniedovich, Moshe**188-203 Serial and parallel value iteration algorithms for discounted Markov decision processes***by*Archibald, T. W. & McKinnon, K. I. M. & Thomas, L. C.**204-220 The project scheduling polyhedron: Dimension, facets and lifting theorems***by*Olaguibel, Ramon Alvarez-Valdes & Goerlich, JoseManuel Tamarit**221-241 Risk taking in stochastic PERT networks***by*Soroush, Hossein**242-247 Optimal design of a multiservice system: The line-penalty problem***by*Viscolani, Bruno**248-258 Determination of the best main serial chain in nonserial dynamic programming networks***by*Lee, Chae Y. & Esogbue, Augustine O.**259-266 A stochastic dominance comparison of truncated normal distributions***by*Stein, William E. & Pfaffenberger, Roger C. & Mizzi, Philip J.**267-271 A statistically optimal estimator of semivariance***by*Josephy, Norman H. & Aczel, Amir D.**272-277 Least absolute deviation estimation of stationary time series models***by*Dunsmuir, W. T. M. & Murtagh, B. A.**278-286 First and second order characterizations of pseudolinear functions***by*Komlosi, S.**287-294 Directional bias of the lp-norm***by*Brimberg, Jack & Love, Robert F.

### 1993, Volume 67, Issue 1

**1-12 Behavioral influences on weight judgments in multiattribute decision making***by*Weber, Martin & Borcherding, Katrin**13-24 Yacht velocity prediction using mathematical programming***by*Philpott, A. B. & Sullivan, R. M. & Jackson, P. S.**25-51 Algebraic languages for mathematical programming***by*Kuip, C. A. C.**52-63 A heuristic for finding embedded network structure in mathematical programmes***by*Baker, Barrie M. & Maye, P. J.**64-74 An iterative procedure for reducing problem size in large scale AHP problems***by*Lim, Kai H. & Swenseth, Scott R.**75-81 Multi-parametric analysis of the maximum tolerance in a linear programming problem***by*Wang, Hsiao-Fan & Huang, Chen-Sheng**88-100 New LP based heuristics for the classification problem***by*Abad, P. L. & Banks, W. J.**101-110 Linear goal programming in estimation of classification probability***by*Lam, K. F. & Choo, E. U. & Wedley, W. C.**111-125 The limits of Combat I: Possibility zones, resource mobilization, and attrition processes***by*Woodcock, A. E. R.**126-135 A modified simplex approach for solving bilevel linear programming problems***by*Onal, Hayri**136-139 Dual of the sum of a linear and linear fractional program***by*Chadha, S. S.

### 1993, Volume 66, Issue 3

**259-271 Minimizing variation of production rates in just-in-time systems: A survey***by*Kubiak, Wieslaw**272-278 A planning model for determining the optimal location and size of traffic centers: The case of Dammam Metropolitan, Saudi Arabia***by*Al-Faraj, Taqi N. & Alidi, Abdulaziz S. & Al-Ibrahim, Abdulla A.**279-290 Optimal bin location and sequencing in printed circuit board assembly***by*Foulds, L. R. & Hamacher, H. W.**291-304 Multicriteria facility layout problem: An integrated approach***by*Shang, Jen S.**305-312 A Lagrangian heuristic for the capacitated plant location problem with single source constraints***by*Sridharan, R.**313-330 Incorporating vehicle routing into the vehicle fleet composition problem***by*Salhi, Said & Rand, Graham K.**331-340 A parallel route building algorithm for the vehicle routing and scheduling problem with time windows***by*Potvin, Jean-Yves & Rousseau, Jean-Marc**341-352 Coordinated transportation systems: An alternative approach to traditional independent systems***by*Baker, Hope M. & Franz, Lori S. & Sweigart, James R.**353-371 On representatives of multi-index transportation problems***by*Junginger, Werner**372-391 Competitive location on a network***by*Bauer, Andreas & Domschke, Wolfgang & Pesch, Erwin**392-402 Efficient chains in a network with time-cost trade-off function on each arc***by*Nair, K. P. K. & Rajendra Prasad, V. & Aneja, Y. P.

### 1993, Volume 66, Issue 2

**161-167 In search of a valid view of model validation for operations research***by*Landry, Maurice & Oral, Muhittin**168-183 Revisiting the issue of model validation in OR: An epistemological view***by*Dery, Richard & Landry, Maurice & Banville, Claude**184-203 Decision science or decision-aid science?***by*Roy, Bernard**204-215 A foundational concept of science appropriate for validation in operational research***by*Miser, Hugh J.**216-234 The facets of the modeling and validation process in operations research***by*Oral, Muhittin & Kettani, Ossama**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.