The following publications are possibly variants of this publication:
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- Heuristic Procedures for Solving the Discrete Ordered Median ProblemPatricia Domínguez-Marín, Stefan Nickel, Pierre Hansen, Nenad Mladenovic. anor, 136(1):145-173, 2005. [doi]
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- Exact procedures for solving the discrete ordered median problemNatashia Boland, Patricia Domínguez-Marín, Stefan Nickel, Justo Puerto. cor, 33(11):3270-3300, 2006. [doi]