@article{CMH_1935__8_138645,
     author = {Franz Steiger},
     title = {Die maximalen {Ordnungen} periodischer topologischer {Abbildungen} geschlossener {Fl\"achen} in sich.},
     journal = {Commentarii mathematici Helvetici},
     pages = {48--69},
     publisher = {mathdoc},
     volume = {8},
     year = {1935},
     zbl = {0012.22802},
     url = {http://geodesic.mathdoc.fr/item/CMH_1935__8_138645/}
}