%0 Journal Article %A G. Ya. Lyubarskii %T An equation of parabolic type with periodic coefficients %J Doklady Akademii Nauk %D 1967 %P 283-286 %V 174 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1967_174_2_a6/ %G ru %F DAN_1967_174_2_a6