TY  - JOUR
AU  - N. N. Petrov
TI  - Some extremal search problems on graphs
JO  - Differencialʹnye uravneniâ
PY  - 1982
SP  - 821
EP  - 827
VL  - 18
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1982_18_5_a11/
LA  - ru
ID  - DE_1982_18_5_a11
ER  -