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.
Nikos A. Lorentzos, Roger G. Johnson. Extending relational algebra to manipulate temporal data. Inf. Syst., 13(3):289-296, 1988.
Abstract is missing.