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.
Kim S. Larsen, Michael I. Schwartzbach, Erik Meineche Schmidt. A New Formalism for Relational Algebra. Inf. Process. Lett., 41(3):163-168, 1992.
Abstract is missing.