@article{AFM_1964_336-344_a9,
     author = {K. P. Grotemeyer},
     title = {\"Uber das {Normalenb\"undel} differenzierbarer {Mannigfaltigkeiten}},
     journal = {Annales Fennici Mathematici},
     publisher = {mathdoc},
     volume = {336-344},
     year = {1964},
     doi = {10.5186/aasfm.1964.336-15},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1964.336-15/}
}