%0 Journal Article %A V. V. Ignatenko %T A power expansion for one-dimensional boundary-value problems %J Doklady Akademii Nauk %D 1964 %P 760-762 %V 154 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1964_154_4_a3/ %G ru %F DAN_1964_154_4_a3