S. Maslov, and S. Redner. (2009)cite arxiv:0901.2640
Comment: 3 pages, 1 figure, invited comment for the Journal of Neuroscience.
The arxiv version is microscopically different from the published version.
P. Desikan, N. Pathak, J. Srivastava, and V. Kumar. ICWE '06: Proceedings of the 6th international conference on Web engineering, page 233--240. New York, NY, USA, ACM Press, (July 2006)