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@article{IVM_1987_1_a6, author = {A. N. F\"edorov}, title = {Products of quasi-varieties of groups}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {41--48}, publisher = {mathdoc}, number = {1}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1987_1_a6/} }
A. N. Fëdorov. Products of quasi-varieties of groups. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 1 (1987), pp. 41-48. http://geodesic.mathdoc.fr/item/IVM_1987_1_a6/