%0 Journal Article
%A N. R. Sibgatullin
%T Variation principle in quantum kinetics
%J Doklady Akademii Nauk
%D 1968
%P 48-51
%V 180
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1968_180_1_a12/
%G ru
%F DAN_1968_180_1_a12