%0 Journal Article %A V. M. Kurbanov %T On the Bessel property and the unconditional basis property of systems of root vector functions of the Dirac operator %J Differencialʹnye uravneniâ %D 1996 %P 1608-1617 %V 32 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1996_32_12_a3/ %G ru %F DE_1996_32_12_a3