%0 Journal Article %A Opdam, E. M. %T Root systems and hypergeometric functions IV %J Compositio Mathematica %D 1988 %P 191-209 %V 67 %N 2 %I Kluwer Academic Publishers %U http://archive.numdam.org/item/CM_1988__67_2_191_0/ %G en %F CM_1988__67_2_191_0