%0 Journal Article
%A Ya. N. Fel'd
%T A general reciprocity theorem for nonmonochromatic processes in
%J Doklady Akademii Nauk
%D 1991
%P 325-327
%V 318
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1991_318_2_a17/
%G ru
%F DAN_1991_318_2_a17