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.
Robert Demolombe. An Extended Relational Algebra on Abstract Objects for Summarizing Answers to Queries. Fundamenta Informaticae, 57(1):1-15, 2003. [doi]
Abstract is missing.