%0 Journal Article %A Zelinka, Bohdan %T A remark on cancellation in direct products of graphs %J Časopis pro pěstování matematiky %D 1989 %P 35-38 %V 114 %N 1 %U http://geodesic.mathdoc.fr/articles/10.21136/CPM.1989.118364/ %R 10.21136/CPM.1989.118364 %G en %F 10_21136_CPM_1989_118364