@article{1077473997, author = {Wang, Hsien-Chung}, title = {The projective deformation of non-holonomic surfaces}, journal = {Duke Math. J.}, volume = {14}, number = {1}, year = {1947}, pages = { 159-166}, language = {en}, url = {http://dml.mathdoc.fr/item/1077473997} }
Wang, Hsien-Chung. The projective deformation of non-holonomic surfaces. Duke Math. J., Tome 14 (1947) no. 1, pp. 159-166. http://gdmltest.u-ga.fr/item/1077473997/