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@article{MZM_1980_27_4_a1, author = {Yu. A. Ignatov}, title = {Groups of linear fractional transformations generated by three elements}, journal = {Matemati\v{c}eskie zametki}, pages = {507--513}, publisher = {mathdoc}, volume = {27}, number = {4}, year = {1980}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1980_27_4_a1/} }
Yu. A. Ignatov. Groups of linear fractional transformations generated by three elements. Matematičeskie zametki, Tome 27 (1980) no. 4, pp. 507-513. http://geodesic.mathdoc.fr/item/MZM_1980_27_4_a1/