%0 Journal Article %A A. B. Vasil'eva %A V. A. Tupchiev %T Asymptotic formulas for the solution of a boundary value problem in the case of a second order equation %J Doklady Akademii Nauk %D 1960 %P 1035-1037 %V 135 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_135_5_a3/ %G ru %F DAN_1960_135_5_a3