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On the symmetric travelling salesman problem I. : inequalities
Grötschel, Martin - 1977
Persistent link: https://www.econbiz.de/10002551496
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On the symmetric travelling salesman problem II. : lifting theorems and facets
Grötschel, Martin - 1977
Persistent link: https://www.econbiz.de/10002551502
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Polyhedral aspects of the traveling salesman : problem II : Computation
Grötschel, Martin; Padberg, Manfred W. - 1983
Persistent link: https://www.econbiz.de/10002551574
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Polyhedral aspects of the traveling salesman : problem I : Theory
Grötschel, Martin; Padberg, Manfred W. - 1983
Persistent link: https://www.econbiz.de/10012015617