%0 Journal Article %A Christophe Hohlweg %A Jonathan Lortie %A Annie Raymond %T The centers of gravity of the associahedron and of the permutahedron are the same %J The electronic journal of combinatorics %D 2010 %V 17 %U http://geodesic.mathdoc.fr/articles/10.37236/344/ %R 10.37236/344 %F 10_37236_344