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.
Nathalie Bertrand, Ph. Schnoebelen. A Short Visit to the STS Hierarchy. Electronic Notes in Theoretical Computer Science, 154(3):59-69, 2006. [doi]