Martin Grötschel, Konrad-Zuse-Zentrum für Informationstechnik Berlin (ZIB), Berlin, Germany; Gyula O.H. Katona, MTA Budapest Rényi Institute of Mathematics, Budapest, Hungary / 2013-01-02 / Springer Berlin Heidelberg
Jaroslav Neetil, Charles University Department of Applied Mathematics, Prague, Czech Republic; Patrice Ossona de Mendez, CAMS - CNRS UMR 8557 蒫ole des Hautes 蓆udes, Paris, France / 2012-04-25 / Springer Berlin Heidelberg