%0 Journal Article
%A N.I. Shepherd-Barron
%T Unstable vector bundles and linear systems on surfaces in characteristic p.
%J Inventiones mathematicae
%D 1991
%P 243-262
%V 106
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM_1991__106_1_143941/
%F IM_1991__106_1_143941