%0 Journal Article %A B. N. Apanasov %T On a class of Kleinian groups in $R^n$ %J Doklady Akademii Nauk %D 1974 %P 509-510 %V 215 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1974_215_3_a1/ %G ru %F DAN_1974_215_3_a1