%0 Journal Article
%A L. G. Mikhailov
%A V. Kreis
%T On an overdetermined system of partial differential equations
%J Doklady Akademii Nauk
%D 1976
%P 1286-1289
%V 228
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1976_228_6_a6/
%G ru
%F DAN_1976_228_6_a6