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An improved assignment lower bound for the Euclidean traveling salesman problem : rev. March 1985
Stewart jr., William R. - In: Operations research letters 4 (1985) 2, pp. 55-60
Persistent link: https://www.econbiz.de/10002854970
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An O (N log N) planar travelling salesman heuristic based on spacefilling curves
Bartholdi III, J. J.; Platzman, L. K. - In: Operations research letters 1 (1982) 4, pp. 121-125
Persistent link: https://www.econbiz.de/10001869440
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Heuristics for unequal weight delivery problems with a fixed error guarantee
Altinkemer, Kemal - In: Operations research letters 6 (1987) 4, pp. 149-158
Persistent link: https://www.econbiz.de/10001038002