%0 Journal Article %A Fisk, Steve %T Distinguishing graphs by the number of homomorphisms %J Discussiones Mathematicae. Graph Theory %D 1995 %P 73-75 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DMGT_1995_15_1_a7/ %G en %F DMGT_1995_15_1_a7