@article{MAN_1966__164_161411,
     author = {R. KAERKES},
     title = {Ein {Satz} \"uber die {Variation} des {Argumentes} unbeschr\"ankter stetiger {Funktionen.}},
     journal = {Mathematische Annalen},
     pages = {344--352},
     publisher = {mathdoc},
     volume = {164},
     year = {1966},
     zbl = {0143.11702},
     url = {http://geodesic.mathdoc.fr/item/MAN_1966__164_161411/}
}