@article{MZ_1962__80_170118,
     author = {Hans Richter},
     title = {Bemerkung zu einem {Satz} von {H.} {G.} {Kellerer.}},
     journal = {Mathematische Zeitschrift},
     pages = {398--399},
     publisher = {mathdoc},
     volume = {80},
     year = {1962},
     url = {http://geodesic.mathdoc.fr/item/MZ_1962__80_170118/}
}