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Yugoslav Journal of Operations ResearchPublisher: Faculty of Organizational Sciences, BelgradeISSN: 0354-0243Issue: 19_1Date: 2009Journal Homepage Editorial BoardImpressum   Penalty Method for Fuzzy Linear Programming With Trapezoidal Numbers 149 - 156 Bogdana Stanojević and Milan Stanojević   AbstractKeywords: Linear programming, trapezoidal fuzzy number, penalty method.MSC: 90C70 90C08DOI: 10.2298/YJOR0901149SZbl: 1274.90526 A Dual Exterior Point Simplex Type Algorithm for the Minimum Cost Network Flow Problem 157 - 170 George Geranis, Konstantinos Paparrizos and Angelo Sifaleras   AbstractKeywords: Operations research, combinatorial optimization, minimum cost network flow problem.MSC: 90C35 90C27 90C05DOI: 10.2298/YJOR0901157GZbl: 1274.90457 Relationship Between Inflation and Inflation Uncertainty: the Case of Serbia 171 - 183 Zorica Mladenović   AbstractKeywords: GARCH model, inflation rate, the Cukierman-Meltzer hypothesis, the Friedman-Ball hypothesis, VAR model.MSC: 91B84DOI: 10.2298/YJOR0901171MZbl: 1274.91343 Reducing E-Commerce Risks Using Digital Certificates 185 - 194 Miloš Piščević and Dejan Simić   AbstractKeywords: Cryptography, digital certificates, X.509, e-commerce.MSC: 94A62 68M11DOI: 10.2298/YJOR0901185PZbl: 1274.94140 The Distribution of Time for Clark’S Flow and Risk Assessment for the Activities of Pert Network Structure 195 - 207 Duško Letić and Vesna Jevtić   AbstractKeywords: Simulation, mathematical model, risk assessment.MSC: 90B15DOI: 10.2298/YJOR0901195LZbl: 1274.90066 Article page: <<12

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