@article{MZ_1969__111_171210,
     author = {Friedrich Tomi},
     title = {\"Uber semilineare elliptische {Differentialgleichungen} zweiter {Ordnung.}},
     journal = {Mathematische Zeitschrift},
     pages = {350--366},
     publisher = {mathdoc},
     volume = {111},
     year = {1969},
     zbl = {0179.43602},
     url = {http://geodesic.mathdoc.fr/item/MZ_1969__111_171210/}
}