European Journal of Operational Research 53 (1991) 405-406 North-Holland Contents Volume 53 Efficient models for the facility layout problem S.S. Heragu and A. Kusiak The zone-constrained location problem on a network O. Berman, D. Einav and G. Handler Heuristics for the p-hub location problem J.G. Klincewicz Computational results from a new Lagrangean relaxation algorithm for the capacitated plant location problem J. Barcelo, E. Fernandez and K.O. Jérnsten Opportunity-based block replacement R. Dekker and E. Smeitink Computing K-shortest path for nuclear spent fuel highway transportation S.-P. Miaou and S.-M. Chin A parametric approach to solving bicriterion shortest path problems J. Mote, I. Murthy and D.L. Olson A probabilistic FLEET model with individual vehicle reliability requirements C. ReVelle and V. Marianov A binomial contingent claims model for valuing risky ventures P. Ritchken and B. Kamrad Level scheduling to minimize schedule length on lots of unit-time jobs M.B. Richey OR Software, H. Thiriez (ed.) EURO Bulletin, Ph. Van Asbroeck (ed.) Multilevel capacitated lotsizing complexity and LP-based heuristics J. Maes, J. McClain and L. Van Wassenhove FLEXSIM: A flexible manufacturing system simulator E. Gelenbe and H. Guennouni A nonlinear goal programming model for multistage, multiobjective decision problems with application to grouping and loading problem in a flexible manufacturing system P. Kumar, N. Singh and N.K. Tewari Cyclic service queues with very short service times P. Kubat and L.D. Servi A data envelopment analytic model for assessing the relative efficiency of the selling function J. Mahajan Incorporating the uncertainty of decision judgements in the analytic hierarchy process M. Sajjad Zahir Beyond preference information based multiple criteria decision making E.E. Rosinger Single-sided economic screening models incorporating individual unit misclassification error and risk preference H. Moskowitz, R. Plante and H.-T. Tsai Planar exponential random walk with restricted angles of turn B.W. Conolly and D.M. Roberts OR Software,H Thiriez (ed.) The maximum flow problem: A max-preflow approach (Invited Review) G. Mazonni, S. Pallottino and M.G. Scutella Road planning in rural areas of developing countries G.A. Makarachi and H.T. Tillotson On the riskiness of the world’s stock markets M.J. Malkamdki, T. Martikainen and J. Perttunnen A demand-to-manufacturing-requirement model based on predefined configurations J.-M. Proth and X.-L. Xie Cost function for a periodic reorder-point system with time dependent replenishment costs K.F. Matta Single machine scheduling problem with a common deadline and resource dependent release dates A, Janiak The complexity of shop-scheduling problems with two or three jobs Yu.N. Sotskov Cardinal ranking of alternative actions: extension of the PROMETHEE method D. Diakoulki and N. Koumoutsos Application of fuzzy theories to multiple objective decision making in system design A.K. Dhingra and H. Moskowitz Some bounds on probability of error in fuzzy discrimination problems L. Pardo and M.K. Menendez A nonlinear programming approach to the parameter design problem Y. Fathi Approximate analysis of a closed fork /join model Y.C. Liu and H.G. Perros The arc partitioning problem L. Bodin and L. Levy A linear time algorithm for the maximum capacity path problem A.P. Punnen Contents Volume 53