1. Maintaining knowledge about temporal intervals;Allen;Communications of the ACM,1983
2. The whole–part relationship in the Unified Modeling Language: a new approach;Barbier,2000
3. The Social Construction of Reality: A Treatise in the Sociology of Knowledge;Berger,1996
4. A user-level model of composition;Bock;Report on Object Analysis and Design (ROAD),1996
5. A more complete model of relations and their implementation — part III: roles;Bock;Journal Of Object-Oriented Programming,1998