Li, L. ; Alderson, D. ; Doyle, J.C. ; Willinger, W.: {Towards a theory of scale-free graphs: Definition, properties, and implications}. In: Internet Mathematics, 2 (2005), Nr. 4, S. 431--523
Newman, M. E. J.: Power laws, Pareto distributions and Zipf's law. In: Contemporary Physics, 46 (2005), S. 323
Newman, M. E. J.: The structure and function of complex networks. In: SIAM Review, 45 (2003), S. 167