PROCEEDINGS MPA/P13 APRIL 2002 PROCEEDINGS of the 11th Workshop on “Nuclear Astrophysics” Ringberg Castle, Tegernsee, Germany February 11 - 16, 2002 Wolfgang Hillebrandt and Ewald M¨ uller (Eds.) Max-Planck-Institut f¨ ur Astrophysik Karl-Schwarzschild-Strasse 1 85740 Garching b. M¨ unchen