%0 Journal Article %A Heckman, G. J. %T Root systems and hypergeometric functions. II %J Compositio Mathematica %D 1987 %P 353-373 %V 64 %N 3 %I Martinus Nijhoff Publishers %U http://www.numdam.org/item/CM_1987__64_3_353_0/ %G en %F CM_1987__64_3_353_0