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@article{DAN_1965_160_2_a11, author = {G. G. Shchepin}, title = {On the occurrence problem for a nilpotent product of finitely presented groups}, journal = {Doklady Akademii Nauk}, pages = {294--297}, publisher = {mathdoc}, volume = {160}, number = {2}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1965_160_2_a11/} }
G. G. Shchepin. On the occurrence problem for a nilpotent product of finitely presented groups. Doklady Akademii Nauk, Tome 160 (1965) no. 2, pp. 294-297. http://geodesic.mathdoc.fr/item/DAN_1965_160_2_a11/