%0 Journal Article %A Anna Khmelnitskaya %A Dolf Talman %T Two Solution Concepts for TU Games with Cycle-Free Directed Cooperation Structures %J Contributions to game theory and management %D 2011 %P 241-265 %V 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CGTM_2011_4_a18/ %G en %F CGTM_2011_4_a18