1. {ADJ1} Goguen Thatcher Wagner & Wright "An Initial Algebra Approach to the Specification Correctness & Implementation of Abstract Data Types." Current Trends in Programming Methodology IV:Data Structuring Raymond T. Yeh(ed.). also IBM Research Report RC 6487 {ADJ1} Goguen Thatcher Wagner & Wright "An Initial Algebra Approach to the Specification Correctness & Implementation of Abstract Data Types." Current Trends in Programming Methodology IV:Data Structuring Raymond T. Yeh(ed.). also IBM Research Report RC 6487
2. {ADJ2} Thatcher Wagner & Wright "Data Type Specifications: Parameterization and the Power of Specification Techniques " Proceedings 10th STOC Conf. May 1978 10.1145/800133.804340 {ADJ2} Thatcher Wagner & Wright "Data Type Specifications: Parameterization and the Power of Specification Techniques " Proceedings 10th STOC Conf. May 1978 10.1145/800133.804340
3. {ADJ3} Thatcher Wagner private communication {ADJ3} Thatcher Wagner private communication
4. {ADJ4} Thatcher Wagner "Specification of Abstract Data Types using Conditional Axioms " Extended Abstract IBM Research Report RC 6214 {ADJ4} Thatcher Wagner "Specification of Abstract Data Types using Conditional Axioms " Extended Abstract IBM Research Report RC 6214