Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1978_241_4_a2, author = {N. A. Gusevskii}, title = {On two classes of {Kleinian} groups}, journal = {Doklady Akademii Nauk}, pages = {753--756}, publisher = {mathdoc}, volume = {241}, number = {4}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1978_241_4_a2/} }
N. A. Gusevskii. On two classes of Kleinian groups. Doklady Akademii Nauk, Tome 241 (1978) no. 4, pp. 753-756. http://geodesic.mathdoc.fr/item/DAN_1978_241_4_a2/