@article{MZ_1969__112_171249,
     author = {Hanns-Walter Rohde},
     title = {Ein {Kriterium} f\"ur das {Fehlen} von {Eigenwerten} elliptischer {Differentialoperatoren.}},
     journal = {Mathematische Zeitschrift},
     pages = {375--388},
     publisher = {mathdoc},
     volume = {112},
     year = {1969},
     zbl = {0181.38203},
     url = {http://geodesic.mathdoc.fr/item/MZ_1969__112_171249/}
}