TY  - JOUR
AU  - A. V. Kravchenko
TI  - $\mathcal Q$-Universal Quasivarieties of Graphs
JO  - Algebra i logika
PY  - 2002
SP  - 311
EP  - 325
VL  - 41
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_2002_41_3_a2/
LA  - ru
ID  - AL_2002_41_3_a2
ER  -