%0 Journal Article
%A R. F. Fikhmanas
%A P. Sh. Fridberg
%T Two-sided variation estimates for polarizability coefficients in the theory of diffraction at small apertures
%J Doklady Akademii Nauk
%D 1969
%P 969-972
%V 189
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1969_189_5_a12/
%G ru
%F DAN_1969_189_5_a12