%0 Journal Article %A L. N. Nikol'skaya %T Stability of eigenvalues of singular integral equations %J Zapiski Nauchnykh Seminarov POMI %D 1987 %P 136-142 %V 165 %U http://geodesic.mathdoc.fr/item/ZNSL_1987_165_a12/ %G ru %F ZNSL_1987_165_a12