TY  - JOUR
AU  - M. Borowiecki
TI  - On chromatic number of products of two graphs
JO  - Colloquium Mathematicum
PY  - 1972
SP  - 49
EP  - 52
VL  - 25
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-25-1-49-52/
DO  - 10.4064/cm-25-1-49-52
LA  - en
ID  - 10_4064_cm_25_1_49_52
ER  -