%0 Journal Article
%A J. B. Farforovskaja
%T On the difference $f(B)-f(A)$ for unbounded self-adjoint operators in the perturbation theory
%J Zapiski Nauchnykh Seminarov POMI
%D 1982
%P 213-221
%V 107
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1982_107_a17/
%G ru
%F ZNSL_1982_107_a17