%0 Journal Article %A I. T. Kiguradze %T On Boundary Value Problems for Linear Differential Systems with Singularities %J Differencialʹnye uravneniâ %D 2003 %P 198-209 %V 39 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2003_39_2_a5/ %G ru %F DE_2003_39_2_a5