@article{1077472095, author = {Wu, George}, title = {Systems of quadrics associated with a point of a surface, II}, journal = {Duke Math. J.}, volume = {10}, number = {1}, year = {1943}, pages = { 515-530}, language = {en}, url = {http://dml.mathdoc.fr/item/1077472095} }
Wu, George. Systems of quadrics associated with a point of a surface, II. Duke Math. J., Tome 10 (1943) no. 1, pp. 515-530. http://gdmltest.u-ga.fr/item/1077472095/