%0 Journal Article %A A. V. Kravchenko %T $\mathcal Q$-Universal Quasivarieties of Graphs %J Algebra i logika %D 2002 %P 311-325 %V 41 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_2002_41_3_a2/ %G ru %F AL_2002_41_3_a2