I'm a masterstudent in nuclear physics and I'm looking for an advanced book on the shell model. The only advanced books on nuclear theory I know are Ring and Schuck (The Nuclear Many-Body Problem) and the book by Heyde (The Nuclear Shell Model). The first is on mean field theory, which is interesting but not in the line of my thesis (on nuclear moments). The problem is that Heyde's book is out of print and he told me he wasn't planning on updating his old text. Do you know of any book on the nuclear shell model?