@article{CM_1988__67_2_191_0,
     author = {Opdam, E. M.},
     title = {Root systems and hypergeometric functions {IV}},
     journal = {Compositio Mathematica},
     pages = {191--209},
     publisher = {Kluwer Academic Publishers},
     volume = {67},
     number = {2},
     year = {1988},
     mrnumber = {951750},
     zbl = {0669.33008},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1988__67_2_191_0/}
}