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@article{AL_1993_32_2_a4, author = {S. V. Rychkov}, title = {Verbal products of groups}, journal = {Algebra i logika}, pages = {160--176}, publisher = {mathdoc}, volume = {32}, number = {2}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1993_32_2_a4/} }
S. V. Rychkov. Verbal products of groups. Algebra i logika, Tome 32 (1993) no. 2, pp. 160-176. http://geodesic.mathdoc.fr/item/AL_1993_32_2_a4/