1. Construetible semi-lattices of degrees of constructibility;Adamowicz,1977
2. Model Theoretic Algebra, Selected Topics;Cherlin,1976
3. Some theorems on definability and decidability;Church;J. Symbolic Logic,1952
4. A coding theorem for isols;Ellentuck;J. Symbolic Logic,1970
5. Degrees of isolic theories;Notre Dame J. Formal Logic,1973