%0 Journal Article %A I. I. Endovickii %T Certain conditions for the stability of the solutions of second order linear differential equations %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1969 %P 35-41 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1969_5_a4/ %G ru %F IVM_1969_5_a4