TY  - JOUR
AU  - Hell, Pavol
AU  - Nešetřil, Jaroslav
TI  - Graphs and k-Societies
JO  - Canadian mathematical bulletin
PY  - 1970
SP  - 375
EP  - 381
VL  - 13
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1970-071-3/
DO  - 10.4153/CMB-1970-071-3
ID  - 10_4153_CMB_1970_071_3
ER  -