%0 Journal Article %A V. F. Tarasov %T A~class of hypergeometric differential equations with three parameters and the symmetry of the Appell function $F_2(1,1)$ %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1995 %P 214-215 %V 50 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1995_50_1_a12/ %G en %F RM_1995_50_1_a12