%0 Journal Article %A Pultr, Aleš %T Tensor products in the category of graphs %J Commentationes Mathematicae Universitatis Carolinae %D 1970 %P 619-639 %V 11 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1970__11_4_a1/ %G en %F CMUC_1970__11_4_a1