1. Completeness of the logical system for structured specifications;Borzyszkowski,1997
2. Systemy logiczne dla specyfikacji strukturalnych;Borzyszkowski,2000
3. Casl The Common Algebraic Specification Language—Semantics;The CoFI Task Group on Semantics,1999
4. Formal specifications with high-order parameterization;Cengarle,1994
5. Model Theory;Chang,1973