%0 Journal Article %A M. A. Saifutdinov %T The existence of fundamental domains of a finitely generated Klein group %J Doklady Akademii Nauk %D 1970 %P 283-284 %V 190 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1970_190_2_a8/ %G ru %F DAN_1970_190_2_a8