TY  - JOUR
AU  - Z. Majcher
TI  - On k-closure operators in graphs. II
JO  - Colloquium Mathematicum
PY  - 1981
SP  - 145
EP  - 154
VL  - 45
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-45-1-145-154/
DO  - 10.4064/cm-45-1-145-154
LA  - en
ID  - 10_4064_cm_45_1_145_154
ER  -