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The bicriterion semi-obnoxious location (BSL) problem solved by an e-approximation
Skriver, Anders J.V., (2003)
Bicriteria network location (BNL) problems with criteria dependent lengths and minisum objectives
Skriver, Anders J. V., (2004)
Solving biobjective combinatorial max-ordering problems by ranking methods and a two-phases approach
Ehrgott, Matthias, (2003)