The multi-level uncapacitated facility location problem is not submodular
| Year of publication: |
1993
|
|---|---|
| Authors: | Barros, A.I. ; Labbe, M. |
| Published in: |
European journal of operational research : EJOR. - Amsterdam : Elsevier, ISSN 0377-2217, ZDB-ID 2430034. - Vol. 71.1993, 1, p. 130-132
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