【3】Lifecycle and Refactroring Patterns That Support Evolution and Reuse. 1995
【9】Creating Abstract Superclasses by Refactoring 1993
【12】Refactoring :an Aid in Designing Application Frameworks and Enolving Object-oriented Systems.
【13】Refactoring and Aggregation
【14】Refactoring 1995
【15】Refactoring object-oriented software to support evolution and reuse.