Implications of a virtual memory mechanism for implementing protection in a family of operating systems
Limits of the "algebraic" specification of abstract data types
ACM SIGPLAN Notices
ICSE '79 Proceedings of the 4th international conference on Software engineering
A note on logic-oriented approaches to data abstraction
ACM SIGSOFT Software Engineering Notes
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Restrictions are one instance of mathematically-based relationships between types that can be used to simplify program specifications. Restriction of an abstract data type provides a theoretical justification for the concept of a hidden function that appears in some current specification methodologies. The use of type restrictions to simplify formal specifications is illustrated by the example of traversible stacks.