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.
Katsushi Inoue, Itsuo Takanami. A Characterization of Recognizable Picture Languages. IJPRAI, 8(2):501-508, 1994.