1. Blum, E.K., Parisi-Presicce, F., Implementation of Data Types by Algebraic Methods, J. Comput. System Sci. 27, 2 (Oct. 1983) 304–330.
2. Ehrig, H., An Algebraic Specification Concept for Modules, Draft Version, Techn. Report No. 84-02, TU Berlin, FB 20, March 1984.
3. Ehrig, H., Kreowski, H.-J., Compatibility of Parameter Passing and Implementation of Parameterized Data Types, Theoret. Comp. Sci. 27(1983) 255–286.
4. Ehrig, H., Kreowski, H.-J., Mahr, B., Padawitz, P., Algebraic Implementation of Abstract Data Types, Theoret. Comp. Sci. 20(1982) 209–264.
5. Ehrig, H., Kreowski, H.-J., Thatcher, J.W., Wagner, E.G., Wright, J.B., Parameter Passing in Algebraic Specification Languages, Proc. Aarhus Workshop on Prog. Spec., 1981, LNCS 134(1982) 322–369.