%0 Journal Article
%A F. Gryunvald
%A Yu. Elstrodt
%A E. Mennike
%T Some remarks on discrete subgroups of  $SL_2(\mathbb{C})$
%J Zapiski Nauchnykh Seminarov POMI
%D 1987
%P 77-106
%V 162
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1987_162_a2/
%G ru
%F ZNSL_1987_162_a2