@article{PMIHES_1987__65__61_0,
     author = {Ramanathan, A.},
     title = {Equations defining {Schubert} varieties and {Frobenius} splittings of diagonals},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {61--90},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {65},
     year = {1987},
     mrnumber = {908216},
     zbl = {0634.14035},
     language = {en},
     url = {http://www.numdam.org/item/PMIHES_1987__65__61_0/}
}