Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Chin-Liang Chang. On Evaluation of Queries Containing Derived Relations in a Relational Data Base. In Advances in Data Base Theory. pages 235-260, 1979.