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.
S. A. Puzynina, Sergey V. Avgustinovich. On periodicity of two-dimensional words. Theoretical Computer Science, 391(1-2):178-187, 2008. [doi]
Abstract is missing.