@article{GDZPPN002376326,
title = {Differentialgeometrie der Strahenkomplex I},
journal = {Mathematische Zeitschrift},
volume = {40},
year = {1936},
pages = {560-581},
zbl = {0012.31402},
url = {http://dml.mathdoc.fr/item/GDZPPN002376326}
}
Haack, W. Differentialgeometrie der Strahenkomplex I. Mathematische Zeitschrift, Tome 40 (1936) pp. 560-581. http://gdmltest.u-ga.fr/item/GDZPPN002376326/