%0 Journal Article %A J. B. Farforovskaja %T Lipschitz functions of self-adjoint operators in perturbation theory %J Zapiski Nauchnykh Seminarov POMI %D 1985 %P 176-182 %V 141 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1985_141_a11/ %G ru %F ZNSL_1985_141_a11