Conference paperContracts: Specifying behavioral compositions in object-oriented systemsRichard Helm, Ian M. Holland, et al.ECOOP 1990
PaperAn Information Retrieval Approach for Automatically Constructing Software LibrariesYoëlle S. Maarek, Daniel M. Berry, et al.IEEE Transactions on Software Engineering
PaperContracts: Specifying Behavioral Compositions in Object-Oriented SystemsRichard Helm, Ian M. Holland, et al.ACM SIGPLAN Notices
PaperVisualizing the behavior of object-oriented systemsWim De Pauw, Richard Helm, et al.ACM SIGPLAN Notices