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.
Harry B. Hunt III, Thomas G. Szymanski. Corrigendum: Lower Bounds and Reductions Between Grammar Problems . Journal of the ACM, 25(4):687-688, 1978. [doi]
Abstract is missing.