%0 Journal Article %A A. S. Makin %T On the basis property of systems of root functions of regular boundary value problems for the Sturm--Liouville operator %J Differencialʹnye uravneniâ %D 2006 %P 1646-1656 %V 42 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2006_42_12_a5/ %G ru %F DE_2006_42_12_a5