1. On the power of algebraic specifications;Bergstra,1981
2. On specifying sets of integers;Bergstra;Elektron. Informationsverarb. Kybernet.,1984
3. On the adequacy of finite equational methods for data type specifications;Bergstra;ACM-Sigplan Notices,1979
4. Algebraic specifications of computable and semicomputable data structures;Bergstra,1979
5. A characterisation of computable data types by means of a finite, equational specification method;Bergstra,1980