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@article{AL_2002_41_3_a2, author = {A. V. Kravchenko}, title = {$\mathcal Q${-Universal} {Quasivarieties} of {Graphs}}, journal = {Algebra i logika}, pages = {311--325}, publisher = {mathdoc}, volume = {41}, number = {3}, year = {2002}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_2002_41_3_a2/} }
A. V. Kravchenko. $\mathcal Q$-Universal Quasivarieties of Graphs. Algebra i logika, Tome 41 (2002) no. 3, pp. 311-325. http://geodesic.mathdoc.fr/item/AL_2002_41_3_a2/