%0 Book %A Tarasov, V. %A Varchenko, A. %T Geometry of $q$-hypergeometric functions, quantum affine algebras and elliptic quantum groups %S Astérisque %D 1997 %N 246 %I Société mathématique de France %U http://archive.numdam.org/item/AST_1997__246__R1_0/ %G en %F AST_1997__246__R1_0