%0 Journal Article %A I. Chargoi %T Smooth approximations to solutions of perturbed Weyl and Dirac equations %J Matematičeskie zametki %D 1996 %P 538-555 %V 60 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1996_60_4_a5/ %G ru %F MZM_1996_60_4_a5