| No.1  No.2  No.3  No.4 
 
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								| Vol.28 No.1 | 
							
								| The Transient Behavior of the PH/M/S/K Queue FUMIAKI MACHIHARA(Musashino Electrical Communication Laboratory, N. T. T.)
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								| Semi-Markov Decision Processes and their Applications in Replacement Models MASAMI KURANO(Chiba University)
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								| Study on a Subjective Evaluation System Supported by ISM and Its Objectivity NOBORU KIMATA(Kanazawa University)
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								| The Horse Game E. G. Enns(Department of Mathematics and Statistics University of Calgary),E. Ferenstein(Institute of Mathematics Technical University of Warsaw)
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								| The Effect of the Communicational Role of the Team Leaders on the Success of OR/MS Projects TADAAKI NEMOTO(Aoyama Gakuin University)
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								| Editorial Correction to I. NABESHIMA and S. MARUYAMA : Two-and Three-Machine Flow-Shop Makespan Scheduling Problems with Additional Times separated from Processing Times SHUNICHI ABE(Editor of the Journal)
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								| Vol.28 No.2 | 
							
								| A Computational Method for All-Integer Interval Linear Programming TERUO SUNAGA, ALFONSO J. HAYAKAWA M., YUJI MARUKI(Kyushu University)
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								| Modeling and Analysis of a Queueing System Existing in a Bank . I. M. PREMACHANDRA(Tokyo Institute of Technology and University of Sri Lanka, Kelaniya Campus),HIDENORI MORIMURA(Tokyo Institute of Technology)
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								| Application and Verification of a Method to Evaluate Regional Sales Power of Mass-produced Goods MASATAKA KATSUMURA, KAIKICHI TANAKA, FUMIHIKO MORI, TAKASHI SATO(Hitachi, Ltd.)
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								| An Approximation of a Loss System with Two Heterogeneous Types of Calls KONOSUKE KAWASHIMA(Musashino Electrical Communication Laboratory, NTT)
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								| Vol.28 No.3 | 
							
								| Optimal Assignment for a Random Sequence with an Unknown Number of Jobs TORU NAKAI(Osaka Prefectural University)
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								| Characteristics of a Production System Consisting of m Machines and s Setup Men TAKAYOSHI TAMURA, KIMIO KAWAGUCHI(Nagoya Institute of Technology)
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								| Construction of the F-, P- and K-trees of a Knapsack Problem and Their Computational Experiments YOSHIO HAYASHI(Koshien University)
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								| Hyperexponential Waiting Time Structure in Hyperexponential HK/HL/1 Systems JULIAN KEILSON(The University of Rochester),FUMIAKI MACHIHARA(NTT Musashino Electrical Communication Laboratories)
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								| Average-Optimal Adaptive Policies in Semi-Markov Decision Processes Including an Unknown Parameter MASAMI  KURANO(Chiba University)
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								| Vol.28 No.4 | 
							
								| A Shortest Path Approach to a Multifacility Minimax Location Problem with Rectilinear Distances TETSUO ICHIMORI(Osaka Institute of Technology)
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								| Eigenvalues of the Transition Rate Matrices in a GI/EK/m Queueine System AKIHIKO ISHIKAWA(Science University of Tokyo)
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								| On Dual Differentiable Exact Penalty Function for Equality Constrained Optimization MASAO FUKUSHIMA, EIKI YAMAKAWA(Kyoto University),HISASHI MINE(Kansai University)
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								| Percentile of Tandem Queue YOSHITSUGU OMAE(Ibaraki University),EIYU IWASE(Nitsuko Ltd.)
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								| Qualitative Properties of Systems of Linear Constraints TAKEO YAMADA(National Defence Academy),TERUHISA KITAHARA(Maritime Self-defence Force)
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								| A Production Planning Model for Multi-Product Facilities CHANG SUP SUNG(Korea Advanced Institute of Science & Technology)
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