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@article{DAN_1978_243_4_a6, author = {V. A. Korobitsyn and O. B. Sidonskii}, title = {A difference operator on a group over a matrix ring}, journal = {Doklady Akademii Nauk}, pages = {847--850}, publisher = {mathdoc}, volume = {243}, number = {4}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1978_243_4_a6/} }
V. A. Korobitsyn; O. B. Sidonskii. A difference operator on a group over a matrix ring. Doklady Akademii Nauk, Tome 243 (1978) no. 4, pp. 847-850. http://geodesic.mathdoc.fr/item/DAN_1978_243_4_a6/