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@article{AL_1996_35_5_a4, author = {M. V. Neshchadim}, title = {Free products of groups that do not have outer normal}, journal = {Algebra i logika}, pages = {562--566}, publisher = {mathdoc}, volume = {35}, number = {5}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1996_35_5_a4/} }
M. V. Neshchadim. Free products of groups that do not have outer normal. Algebra i logika, Tome 35 (1996) no. 5, pp. 562-566. http://geodesic.mathdoc.fr/item/AL_1996_35_5_a4/