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Completeness in standard and differential approximation classes: Poly-(D)APX- and (D)PTAS-completeness
(2005) Article accepté pour publication ou publié
A Better differential approximation ratio for symmetric TSP
(2008) Article accepté pour publication ou publié
Weighted coloring: further complexity and approximability results
(2005) Communication / Conférence
Complexity and Approximation Results for the Connected Vertex Cover Problem in Graphs and Hypergraphs
(2010) Article accepté pour publication ou publié



