Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1960__1_1_a0, author = {\v{C}ech, Eduard}, title = {Propri\'et\'es projectives du contact. {III}}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {1--19}, publisher = {mathdoc}, volume = {01}, number = {1}, year = {1960}, zbl = {0116.13801}, language = {fr}, url = {http://geodesic.mathdoc.fr/item/CMUC_1960__1_1_a0/} }
Čech, Eduard. Propriétés projectives du contact. III. Commentationes Mathematicae Universitatis Carolinae, Tome 01 (1960) no. 1, pp. 1-19. http://geodesic.mathdoc.fr/item/CMUC_1960__1_1_a0/