@article{DAN_1977_234_2_a3,
     author = {N. A. Gusevskii},
     title = {On a problem in the theory of {Kleinian} groups},
     journal = {Doklady Akademii Nauk},
     pages = {277--279},
     publisher = {mathdoc},
     volume = {234},
     number = {2},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_234_2_a3/}
}