Community structure detection based on Potts model and network's spectral characterizationHui-Jia Li, Yong Wang, Ling-Yun Wu, Zhi-Ping Liu, Luonan Chen and Xiang-Sun ZhangEPL, 97 4 (2012) 48005DOI: https://doi.org/10.1209/0295-5075/97/48005