%0 Journal Article %A V. P. Gromov %T A certain class of functional equations %J Differencialʹnye uravneniâ %D 1972 %P 473-485 %V 8 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_3_a9/ %G ru %F DE_1972_8_3_a9