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.
Priti Mishra, Margaret H. Eich. Join Processing in Relational Databases. ACM Computing Surveys, 24(1):63-113, 1992. [doi]