%0 Journal Article %A I. M. Gel'fand %A M. I. Graev %A V. S. Retakh %T General hypergeometric systems of equations and series of hypergeometric type %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1992 %P 1-88 %V 47 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1992_47_4_a0/ %G en %F RM_1992_47_4_a0