@article{MAN_1920__81_158821,
     author = {H. Rademacher},
     title = {\"Uber partielle und totale {Differenzierbarkeit} von {Funktionen} mehrerer {Variabeln.} {II}},
     journal = {Mathematische Annalen},
     pages = {52--63},
     publisher = {mathdoc},
     volume = {81},
     year = {1920},
     url = {http://geodesic.mathdoc.fr/item/MAN_1920__81_158821/}
}