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.
Martin Knor, LudovĂt Niepel. Radii and centers in iterated line digraphs. Discussiones Mathematicae Graph Theory, 16(1):17-26, 1996. [doi]