@article{1183503475, author = {Whitney, Hassler}, title = {On regular families of curves}, journal = {Bull. Amer. Math. Soc.}, volume = {47}, number = {11}, year = {1941}, pages = { 145-147}, language = {en}, url = {http://dml.mathdoc.fr/item/1183503475} }
Whitney, Hassler. On regular families of curves. Bull. Amer. Math. Soc., Tome 47 (1941) no. 11, pp. 145-147. http://gdmltest.u-ga.fr/item/1183503475/