Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1952__56_169301, author = {Martin Barner}, title = {Zur projektiven {Differentialgeometrie} der {Kurvenpaare.}}, journal = {Mathematische Zeitschrift}, pages = {409--441}, publisher = {mathdoc}, volume = {56}, year = {1952}, zbl = {0048.39203}, url = {http://geodesic.mathdoc.fr/item/MZ_1952__56_169301/} }
Martin Barner. Zur projektiven Differentialgeometrie der Kurvenpaare.. Mathematische Zeitschrift, Tome 56 (1952), pp. 409-441. http://geodesic.mathdoc.fr/item/MZ_1952__56_169301/