%0 Journal Article
%A Berman, Gerald
%T The Dichromate and Orientations of a Graph
%J Canadian journal of mathematics
%D 1977
%P 947-956
%V 29
%N 5
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1977-095-1/
%R 10.4153/CJM-1977-095-1
%F 10_4153_CJM_1977_095_1