%0 Journal Article
%A V. M. Fridkin
%T Iso-opaque in electro-photography
%J Doklady Akademii Nauk
%D 1962
%P 825-828
%V 143
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1962_143_4_a20/
%G ru
%F DAN_1962_143_4_a20