@article{DAN_1974_215_3_a1,
     author = {B. N. Apanasov},
     title = {On a class of {Kleinian} groups in $R^n$},
     journal = {Doklady Akademii Nauk},
     pages = {509--510},
     publisher = {mathdoc},
     volume = {215},
     number = {3},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_215_3_a1/}
}