@article{MZ_1933__36_168390,
     author = {O. Perron},
     title = {\"Uber das {Minimum} positiver {Hermitescher} {Formen}},
     journal = {Mathematische Zeitschrift},
     pages = {148--160},
     year = {1933},
     volume = {36},
     zbl = {58.0206.02},
     url = {http://geodesic.mathdoc.fr/item/MZ_1933__36_168390/}
}