@article{MOMA_1968__72_177425,
     author = {Carl-Heinz Seriba},
     title = {\"Uber koordinatenfreie {Differentialgeometrie.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {224--238},
     publisher = {mathdoc},
     volume = {72},
     year = {1968},
     zbl = {0183.25701},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1968__72_177425/}
}