Jensen's \Sigma^* theory and the combinatorial content of V=L
  The purpose of this article is to indicate how a reformulation of Jensen's $\Sigma^*$ theory (developed for the study of core models) can be used to provide a more satisfactory treatment of uniformization, hulls and Skolem functions for the $J_\alpha$'s. Then we use this approach to fine structure to formulate a principle intended to capture the combinatorial content of the axiom $V=L.$ 
Sy D. Friedman (MIT)