%0 Journal Article
%A A. Dzhuraev
%T On systems of first-order equations of composite type in space
%J Doklady Akademii Nauk
%D 1977
%P 11-14
%V 234
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1977_234_1_a0/
%G ru
%F DAN_1977_234_1_a0