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.
Edward T. Lee. On two-dimensional programmed grammers. Robotics and Autonomous Systems, 3(3-4):427-431, 1987. [doi]
Abstract is missing.