@article{10_4064_cm_6_1_141_143,
     author = {Eduard \v{C}ech},
     title = {Sur le type diff\'erentiel anallagmatique d'une courbe plane ou gauche},
     journal = {Colloquium Mathematicum},
     pages = {141--143},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {1958},
     doi = {10.4064/cm-6-1-141-143},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-6-1-141-143/}
}