%0 Journal Article
%A D. C. Spencer
%T Overdetermined systems of linear partial differential equations
%J Matematika
%D 1970
%P 66-90
%V 14
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAT_1970_14_2_a2/
%G ru
%F MAT_1970_14_2_a2