@article{Helling1972, author = {Helling, H.}, journal = {Inventiones mathematicae}, pages = {217-230}, title = {Diskrete Untergruppen von SL2 (IR).}, url = {http://eudml.org/doc/142170}, volume = {17}, year = {1972}, }
TY - JOUR AU - Helling, H. TI - Diskrete Untergruppen von SL2 (IR). JO - Inventiones mathematicae PY - 1972 VL - 17 SP - 217 EP - 230 UR - http://eudml.org/doc/142170 ER -