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@article{IM_1987__87_143423, author = {A. Ramanathan and G.R. Kempf}, title = {Multi-cones over {Schubert} varieties}, journal = {Inventiones mathematicae}, pages = {353--364}, publisher = {mathdoc}, volume = {87}, year = {1987}, zbl = {0615.14028}, url = {http://geodesic.mathdoc.fr/item/IM_1987__87_143423/} }
A. Ramanathan; G.R. Kempf. Multi-cones over Schubert varieties. Inventiones mathematicae, Tome 87 (1987), pp. 353-364. http://geodesic.mathdoc.fr/item/IM_1987__87_143423/