@article{10_1090_S0894_0347_1995_1284849_8,
     author = {Levasseur, T. and Stafford, J. T.},
     title = {Invariant differential operators and an homomorphism of {Harish-Chandra}},
     journal = {Journal of the American Mathematical Society},
     pages = {365--372},
     publisher = {mathdoc},
     volume = {08},
     number = {2},
     year = {1995},
     doi = {10.1090/S0894-0347-1995-1284849-8},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1995-1284849-8/}
}