Line Bundles Over Families of (SUPER) Riemann Surfaces. II: The Graded   Case
  A relative Picard theory in the context of graded manifolds is introduced. A Berezinian calculus and a theory of connections over SUSY-curves are systematically developed, and used to prove a Gauss-Bonnet theorem for line bundles in that setting and to discuss the validity of a flatness theorem 
U. Bruzzo and J.A. Dominguez Perez