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@article{IM_1976__35_142411, author = {Michel Demazure}, title = {A {Moebius-Like} {Formula} in the {Schubert} {Calcalus.}}, journal = {Inventiones mathematicae}, pages = {317--320}, publisher = {mathdoc}, volume = {35}, year = {1976}, zbl = {0353.20032}, url = {http://geodesic.mathdoc.fr/item/IM_1976__35_142411/} }
Michel Demazure. A Moebius-Like Formula in the Schubert Calcalus.. Inventiones mathematicae, Tome 35 (1976), pp. 317-320. http://geodesic.mathdoc.fr/item/IM_1976__35_142411/