European Journal of Operational Research · 1984 · 115 citations · 20 references
Transport Network AnalysisEngineeringScheduling ProblemBusinessNetwork AnalysisSystems EngineeringLogisticsVehicle Routing ProblemTransportation EngineeringInteger ProgrammingCrew SchedulingOperations Research
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Complexity of vehicle routing and scheduling problems
Jan Karel Lenstra, A. H. G. Rinnooy Kan · Networks · 1981 · 1.3K citations
Graph Theory: An Algorithmic Approach
E. Kay · Journal of the Operational Research Society · 1976 · 910 citations
Graph Theory: An Algorithmic Approach
E. Kay, N. Christofides · Operational Research Quarterly (1970-1977) · 1976 · 766 citations