Le probleme de Brill-Noether pour les fibre's de Steiner et application   aux courbes gauches
  A Steiner bundle over the projective 3-space is the kernel in a trivial bundle of a morphism defined by a matrix of linear forms. We produce various Steiner bundles E of rank n such that E(1) has n-1 sections, the dependency locus of which is a smooth curve. 
Ph. Ellia (Ferrara), A. Hirschowitz (Nice), L. Manivel(Grenoble)