@article{MAN_1937__114_159912,
     author = {R. Iglisch},
     title = {Verzweigung periodischer {L\"osungen} nichtlinearer {Schwingungsgleichungen}},
     journal = {Mathematische Annalen},
     pages = {194--226},
     publisher = {mathdoc},
     volume = {114},
     year = {1937},
     zbl = {0016.16305},
     url = {http://geodesic.mathdoc.fr/item/MAN_1937__114_159912/}
}