@article{MAN_1958__135_160632, author = {W. H\"amisch}, title = {Differentiale und {Tensoren.}}, journal = {Mathematische Annalen}, pages = {420--443}, publisher = {mathdoc}, volume = {135}, year = {1958}, url = {http://geodesic.mathdoc.fr/item/MAN_1958__135_160632/} }