Welf Löwe, Rainer Neumann, Martin Trapp, Wolf Zimmermann. Weak Subtyping - Yet Another Notion of Inheritance. In TOOLS 1998: 26th International Conference on Technology of Object-Oriented Languages and Systems, 3-7 August 1998, Santa Barbara, CA, USA. pages 333-345, IEEE Computer Society, 1998. [doi]
Abstract is missing.