@article{MAN_1963__152_161112,
     author = {H. LANGER},
     title = {Eine {Verallgemeinerung} eines {Satzes} von {L.S.} {PONTRJAGIN.}},
     journal = {Mathematische Annalen},
     pages = {434--436},
     publisher = {mathdoc},
     volume = {152},
     year = {1963},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1963__152_161112/}
}