%0 Journal Article %A A. I. Smirnov %A V. M. Polyanskii %A G. M. Kashin %T Liftig surface in a unsteady gas flow. Approximation of the integral equation kernel %J Doklady Akademii Nauk %D 1986 %P 32-34 %V 290 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_290_1_a5/ %G ru %F DAN_1986_290_1_a5