@article{MAN_1941__118_160080,
     author = {Richter. H.},
     title = {Untersuchungen zum {Erneuerungsproblem.}},
     journal = {Mathematische Annalen},
     pages = {145--194},
     year = {1941},
     volume = {118},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1941__118_160080/}
}