Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_2007_81_4_a14, author = {E. Yu. Amerik}, title = {On {Morphisms} onto {Quadrics}}, journal = {Matemati\v{c}eskie zametki}, pages = {621--624}, publisher = {mathdoc}, volume = {81}, number = {4}, year = {2007}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_2007_81_4_a14/} }
E. Yu. Amerik. On Morphisms onto Quadrics. Matematičeskie zametki, Tome 81 (2007) no. 4, pp. 621-624. http://geodesic.mathdoc.fr/item/MZM_2007_81_4_a14/