1. Admissible Sets and Structures;Barwise,1975
2. Successor levels of the Jensen hierarchy;Fuchs;Mathematical Logic Quarterly,2009
3. Set Theory: The Third Millenium Edition, Revised and Expanded;Jech,2003
4. The fine structure of the constructible hierarchy;Jensen;Annals of Mathematical Logic,1972
5. A new fine structure for higher core models;Jensen,1997