%0 Journal Article %A V. N. Chetverikov %T The structure of integrable $C$-fields on infinitely prolonged equations %J Doklady Akademii Nauk %D 1986 %P 54-57 %V 286 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_286_1_a11/ %G ru %F DAN_1986_286_1_a11