%0 Journal Article
%A V. B. Bobrov
%T Exact relation for photon distribution function in a~medium in the long-wavelength limit
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1991
%P 141-145
%V 88
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_1991_88_1_a17/
%G ru
%F TMF_1991_88_1_a17