%0 Journal Article
%A H. Shimizu
%T On discontinuous groups operating on the product of the upper half planes
%J Matematika
%D 1966
%P 126-164
%V 10
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAT_1966_10_3_a4/
%G ru
%F MAT_1966_10_3_a4