%0 Journal Article
%A V. R. Kireitov
%T On some properties of photometric quantities on a Riemannian manifold
%J Doklady Akademii Nauk
%D 1980
%P 21-26
%V 255
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1980_255_1_a3/
%G ru
%F DAN_1980_255_1_a3