@article{MM2_1970__2_153999,
     author = {Udo Simon},
     title = {Probleme der lokalen und globalen mehrdimensionalen {Differentialgeometrie.}},
     journal = {Manuscripta mathematica},
     pages = {241--284},
     publisher = {mathdoc},
     volume = {2},
     year = {1970},
     zbl = {0188.54101},
     url = {http://geodesic.mathdoc.fr/item/MM2_1970__2_153999/}
}