@article{CRMATH_2002__335_2_111_0,
     author = {Marastoni, Corrado},
     title = {Generalized {Verma} modules, \protect\emph{b}-functions of semi-invariants and duality for twisted $ \mathcal{D}$-modules on generalized flag manifolds},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {111--116},
     publisher = {Elsevier},
     volume = {335},
     number = {2},
     year = {2002},
     doi = {10.1016/S1631-073X(02)02449-4},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1016/S1631-073X(02)02449-4/}
}