%0 Journal Article %A U. D. Bekbaev %T On equivalence and invariants of ordinary linear differential equations %J Differencialʹnye uravneniâ %D 1994 %P 911-912 %V 30 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1994_30_5_a23/ %G ru %F DE_1994_30_5_a23