@article{CMH_1937__10_138692,
     author = {Walter Gruner},
     title = {Regul\"are {Permutationen} und ihre {Beziehungen} zur {Topologie.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {42--68},
     publisher = {mathdoc},
     volume = {10},
     year = {1937},
     zbl = {0017.29702},
     url = {http://geodesic.mathdoc.fr/item/CMH_1937__10_138692/}
}