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.
Alexei P. Stolboushkin, Michael A. Taitslin. Finite Queries Do Not Have Effective Syntax. Inf. Comput., 153(1):99-116, 1999.