%0 Journal Article
%A M. R. Sayapova
%A D. R. Yafaev
%T The evolution operator for time-dependent potentials of zero radius
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1983
%P 167-174
%V 159
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1983_159_a10/
%G ru
%F TM_1983_159_a10