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@article{AL_1971_10_5_a7, author = {A. A. Chebotar'}, title = {Subgroups of groups with one defining relation that do not contain}, journal = {Algebra i logika}, pages = {570--586}, publisher = {mathdoc}, volume = {10}, number = {5}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1971_10_5_a7/} }
A. A. Chebotar'. Subgroups of groups with one defining relation that do not contain. Algebra i logika, Tome 10 (1971) no. 5, pp. 570-586. http://geodesic.mathdoc.fr/item/AL_1971_10_5_a7/