1. Ravasz, E.: Evolution, hierarchy and modular organization in complex networks.Ph. D. thesis, University of Notre Dame (2004)
2. Gol’dshtein, V., Koganov, G.A., Surdutovich, G.I.: Vulnerability and hierarchy of complex networks. cond-mat/0409298 (2004)
3. Latora, V., Marchiori, M.: Economic Small-World Behavior in Weighted Networks. The European Physics Journal B-Condensed Matter and Complex Systems 32(2), 249–263 (2002)
4. Trusina, A., Maslov, S., Minnhagen, P., Sneppen, K.: Hierarchy Measures in Complex Networks. Physical Review Letters 92(17), 178702 (2008)
5. Tangmunarunkit, H., Govinadan, R., Jamin, S., Shenker, S., Willinger, W.: Tech. Rep 01-746. Computer Science Department, University of Southern California (2001)