@article{MAN_1929__101_159359,
     author = {H. Lewy},
     title = {Neuer {Beweis} des analytischen {Charakters} der {L\"osungen} elliptischer {Differentialgleichungen}},
     journal = {Mathematische Annalen},
     pages = {609--619},
     publisher = {mathdoc},
     volume = {101},
     year = {1929},
     zbl = {55.0882.03},
     url = {http://geodesic.mathdoc.fr/item/MAN_1929__101_159359/}
}