%0 Journal Article %A A. V. Yagzhev %T A functional equation from theoretical physics %J Funkcionalʹnyj analiz i ego priloženiâ %D 1982 %P 49-57 %V 16 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1982_16_1_a6/ %G ru %F FAA_1982_16_1_a6