@article{MAN_1913__74_158642,
     author = {O. Bolza},
     title = {\"Uber den {?Anormalen} {Fall}},
     journal = {Mathematische Annalen},
     pages = {430--446},
     publisher = {mathdoc},
     volume = {74},
     year = {1913},
     zbl = {44.0447.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1913__74_158642/}
}