%0 Journal Article %A V. V. Ivlev %A E. Grjibovskaya %T Systems of Linear Differential Equations. Integrable Combinations. Part I %J Matematičeskoe obrazovanie %D 2006 %P 2-9 %V 36 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MO_2006_36_1_a0/ %G ru %F MO_2006_36_1_a0