%0 Journal Article %A A. E. Gur'yanov %T Inversion of a linear nonstationary system %J Differencialʹnye uravneniâ %D 1979 %P 2269-2270 %V 15 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1979_15_12_a19/ %G ru %F DE_1979_15_12_a19