1. Localisation de g-modules;Beilinson;C. R. Acad. Sci. Paris,1981
2. A generalization of Casselman's submodule theorem;Beilinson,1983
3. Rings of Differential Operators;Björk,1979
4. Induced and produced representations of Lie algebras;Blattner;Trans. Amer. Math. Soc.,1969
5. Differential operators on homogeneous spaces, I;Borho;Inv. Math.,1982