@article{GDZPPN002066548, title = {A criterion for a variety to be cone.}, journal = {Commentarii mathematici Helvetici}, volume = {62}, year = {1987}, pages = {417-422}, zbl = {0633.14028}, url = {http://dml.mathdoc.fr/item/GDZPPN002066548} }
Sommese, Andrew J.; Beltrametti, M. A criterion for a variety to be cone.. Commentarii mathematici Helvetici, Tome 62 (1987) pp. 417-422. http://gdmltest.u-ga.fr/item/GDZPPN002066548/