%0 Journal Article
%A A. D. Venttsel'
%T Non-negative additive functionals of Markov processes
%J Doklady Akademii Nauk
%D 1961
%P 17-20
%V 137
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1961_137_1_a2/
%G ru
%F DAN_1961_137_1_a2