%0 Journal Article %A G. V. Jaiani %T Riquier problems with weight for a fourth order degenerate equation %J Doklady Akademii Nauk %D 1976 %P 1285-1288 %V 231 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_231_6_a1/ %G ru %F DAN_1976_231_6_a1