@article{MAN_1957__133_160544,
     author = {R. Courant},
     title = {Franz {Rellich} zum {Ged\"achtnis.}},
     journal = {Mathematische Annalen},
     pages = {185--190},
     year = {1957},
     volume = {133},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1957__133_160544/}
}