%0 Journal Article %A M. K. Bugir %T Oscillation of solutions of linear differential equations in spaces of constant curvature %J Differencialʹnye uravneniâ %D 1990 %P 1956-1961 %V 26 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_11_a15/ %G ru %F DE_1990_26_11_a15