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@article{CM_1988__67_1_21_0, author = {Opdam, E. M.}, title = {Root systems and hypergeometric functions {III}}, journal = {Compositio Mathematica}, pages = {21--49}, publisher = {Kluwer Academic Publishers}, volume = {67}, number = {1}, year = {1988}, mrnumber = {949270}, zbl = {0669.33007}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CM_1988__67_1_21_0/} }
Opdam, E. M. Root systems and hypergeometric functions III. Compositio Mathematica, Tome 67 (1988) no. 1, pp. 21-49. http://geodesic.mathdoc.fr/item/CM_1988__67_1_21_0/