%0 Journal Article
%A Herbert Lange
%T Higher secant varieties of curves and the theorem of Nagata on ruled surfaces.
%J Manuscripta mathematica
%D 1984
%P 263-270
%V 47
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM2_1984__47_155015/
%F MM2_1984__47_155015