%0 Journal Article %A A. M. Molchanov %T Stability in the case of a neutral linear approximation %J Doklady Akademii Nauk %D 1961 %P 24-27 %V 141 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_141_1_a5/ %G ru %F DAN_1961_141_1_a5