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.
Martin Beaudry, Pierre McKenzie, Denis Thérien. The Membership Problem in Aperiodic Transformation Monoids. Journal of the ACM, 39(3):599-616, 1992. [doi]
Abstract is missing.