@article{GDZPPN002106620, title = {Apolarity and its applications.}, journal = {Inventiones mathematicae}, volume = {96}, year = {1989}, pages = {433-444}, zbl = {0709.14027}, url = {http://dml.mathdoc.fr/item/GDZPPN002106620} }
Shepherd-Barron, N.I. Apolarity and its applications.. Inventiones mathematicae, Tome 96 (1989) pp. 433-444. http://gdmltest.u-ga.fr/item/GDZPPN002106620/