TY  - JOUR
AU  - Lucjan Szamkołowicz
TI  - On problems related to characteristic vertices of graphs
JO  - Colloquium Mathematicum
PY  - 1979
SP  - 367
EP  - 375
VL  - 42
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-42-1-367-375/
DO  - 10.4064/cm-42-1-367-375
LA  - en
ID  - 10_4064_cm_42_1_367_375
ER  -