%0 Journal Article %A K. V. Chukbar %T A universal wave equation with a nonlocal nonlinearity %J Doklady Akademii Nauk %D 1988 %P 1375-1379 %V 301 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_301_6_a23/ %G ru %F DAN_1988_301_6_a23