%0 Journal Article %A G. P. Pelyukh %T Solutions of systems of nonlinear functional equations that are %J Doklady Akademii Nauk %D 1990 %P 1309-1311 %V 311 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1990_311_6_a6/ %G ru %F DAN_1990_311_6_a6