TY - JOUR AU - Soukup, Lajos TI - On chromatic number of product of graphs JO - Commentationes Mathematicae Universitatis Carolinae PY - 1988 SP - 1 EP - 12 VL - 29 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_1988__29_1_a0/ LA - en ID - CMUC_1988__29_1_a0 ER -