%0 Journal Article %A G. A. Sviridyuk %T The Cauchy problem for a linear operator equation of Sobolev type with a nonpositive operator multiplying the derivative %J Differencialʹnye uravneniâ %D 1987 %P 1823-1826 %V 23 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_10_a28/ %G ru %F DE_1987_23_10_a28