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@article{AL_1989_28_5_a2, author = {A. I. Budkin}, title = {$Q$-theories of $2$-generated groups with a given}, journal = {Algebra i logika}, pages = {513--523}, publisher = {mathdoc}, volume = {28}, number = {5}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1989_28_5_a2/} }
A. I. Budkin. $Q$-theories of $2$-generated groups with a given. Algebra i logika, Tome 28 (1989) no. 5, pp. 513-523. http://geodesic.mathdoc.fr/item/AL_1989_28_5_a2/