@article{MAN_1893__42_157666, author = {R. Fricke}, title = {Zur gruppentheoretischen {Grundlegung} der automorphen {Functionen}}, journal = {Mathematische Annalen}, pages = {564}, publisher = {mathdoc}, volume = {42}, year = {1893}, language = {de}, url = {https://geodesic-test.mathdoc.fr/item/MAN_1893__42_157666/} }