%0 Journal Article
%A A. M. Vinogradov
%A V. N. Gusyatnikova
%A V. A. Yumaguzhin
%T Secondary differential operators
%J Doklady Akademii Nauk
%D 1985
%P 801-805
%V 283
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1985_283_4_a7/
%G ru
%F DAN_1985_283_4_a7