%0 Journal Article %A V. M. Filippov %T Quasiclassical solutions of an inverse problem of the calculus of %J Doklady Akademii Nauk %D 1985 %P 53-56 %V 285 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1985_285_1_a10/ %G ru %F DAN_1985_285_1_a10