Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MAT_1970_14_2_a4, author = {B. Kostant}, title = {On the existence and irreducibility of certain series of representations}, journal = {Matematika}, pages = {102--116}, publisher = {mathdoc}, volume = {14}, number = {2}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MAT_1970_14_2_a4/} }
B. Kostant. On the existence and irreducibility of certain series of representations. Matematika, Tome 14 (1970) no. 2, pp. 102-116. http://geodesic.mathdoc.fr/item/MAT_1970_14_2_a4/