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3. IBM Research Report;J. A. Goguen,1978
4. ADJ (JWT, EGW, JBW) "Data Type Specification: parameterization and the power of specification techniques," Proceedings, SIGACT 10th Annual Symposium on Theory of Computing, May, 1978, pp. 119–132.
5. ADJ (HE, H-JK, JWT, EGW, JBW) "Parameter passing in algebraic specification languages," Technical Report to appear, 1980.