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@article{MAN_1986__276_164193, author = {Kevin M. Ryan}, title = {On {Schubert} {Varieties} in the {Flag} {Manifold} of {SI} (n, {C).}}, journal = {Mathematische Annalen}, pages = {205--224}, publisher = {mathdoc}, volume = {276}, year = {1986}, zbl = {0579.14045}, url = {http://geodesic.mathdoc.fr/item/MAN_1986__276_164193/} }
Kevin M. Ryan. On Schubert Varieties in the Flag Manifold of SI (n, C).. Mathematische Annalen, Tome 276 (1986), pp. 205-224. http://geodesic.mathdoc.fr/item/MAN_1986__276_164193/