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@article{IVM_1959_3_a8, author = {S. R. Kogalovskii}, title = {On universal classes of algebras, closed under direct products}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {88--96}, publisher = {mathdoc}, number = {3}, year = {1959}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1959_3_a8/} }
S. R. Kogalovskii. On universal classes of algebras, closed under direct products. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (1959), pp. 88-96. http://geodesic.mathdoc.fr/item/IVM_1959_3_a8/