@article{MAN_1904__59_158145,
     author = {S. Bernstein},
     title = {Sur la nature analytique des solutions des \'equations aux d\'eriv\'ees partielles du secoud ordre. {(Mit} 3 {Figuren} im {Text)} .},
     journal = {Mathematische Annalen},
     pages = {20--76},
     publisher = {mathdoc},
     volume = {59},
     year = {1904},
     zbl = {35.0354.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1904__59_158145/}
}