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@article{DAN_1985_284_5_a2, author = {A. A. Bovdi}, title = {A unitary subgroup and a congruence-subgroup of a multiplicative}, journal = {Doklady Akademii Nauk}, pages = {1041--1044}, publisher = {mathdoc}, volume = {284}, number = {5}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1985_284_5_a2/} }
A. A. Bovdi. A unitary subgroup and a congruence-subgroup of a multiplicative. Doklady Akademii Nauk, Tome 284 (1985) no. 5, pp. 1041-1044. http://geodesic.mathdoc.fr/item/DAN_1985_284_5_a2/