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@article{MAN_1994__300_2_165274, author = {Marco Andreatta}, title = {Contractions of {Gorenstein} polarized varieties with high nef value.}, journal = {Mathematische Annalen}, pages = {669--680}, publisher = {mathdoc}, volume = {300}, number = {2}, year = {1994}, zbl = {0813.14009}, url = {http://geodesic.mathdoc.fr/item/MAN_1994__300_2_165274/} }
Marco Andreatta. Contractions of Gorenstein polarized varieties with high nef value.. Mathematische Annalen, Tome 300 (1994) no. 2, pp. 669-680. http://geodesic.mathdoc.fr/item/MAN_1994__300_2_165274/