%0 Journal Article %A N. A. Pan'kin %T The integration of a linear second-order differential equation with a variable coefficient %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1959 %P 122-125 %N 4 %U http://geodesic.mathdoc.fr/item/IVM_1959_4_a15/ %G ru %F IVM_1959_4_a15