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@article{AL_1999_38_3_a5, author = {N. S. Romanovskii}, title = {On a {Freiheitssatz} for products of groups}, journal = {Algebra i logika}, pages = {354--367}, publisher = {mathdoc}, volume = {38}, number = {3}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1999_38_3_a5/} }
N. S. Romanovskii. On a Freiheitssatz for products of groups. Algebra i logika, Tome 38 (1999) no. 3, pp. 354-367. http://geodesic.mathdoc.fr/item/AL_1999_38_3_a5/