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@article{DAN_1970_190_2_a8, author = {M. A. Saifutdinov}, title = {The existence of fundamental domains of a finitely generated {Klein} group}, journal = {Doklady Akademii Nauk}, pages = {283--284}, publisher = {mathdoc}, volume = {190}, number = {2}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1970_190_2_a8/} }
M. A. Saifutdinov. The existence of fundamental domains of a finitely generated Klein group. Doklady Akademii Nauk, Tome 190 (1970) no. 2, pp. 283-284. http://geodesic.mathdoc.fr/item/DAN_1970_190_2_a8/