%0 Journal Article
%A Alessandro Verra
%T Smooth surfaces of degree 9 in G(1,3).
%J Manuscripta mathematica
%D 1988
%P 417-436
%V 62
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM2_1988__62_3_155357/
%F MM2_1988__62_3_155357