@article{MZ_1967__95_170657,
     author = {Willi J\"ager},
     title = {\"Uber das {Dirichletsche} {Au{\ss}enraumproblem} f\"ur die {Schwingungsgleichung.}},
     journal = {Mathematische Zeitschrift},
     pages = {299--323},
     publisher = {mathdoc},
     volume = {95},
     year = {1967},
     zbl = {0144.15402},
     url = {http://geodesic.mathdoc.fr/item/MZ_1967__95_170657/}
}