1. Vicsek T, Czirok A, Ben-Jacob E, et al. Novel type of phase transitions in a system of self-driven particles. Phys Rev Lett, 1995, 75(6):1226–1229
2. Jadbabaie A, Lin J, Morse A S. Coordination of groups of mobile autonomous agents using nearest neighbor rules. IEEE Trans Automat Control, 2003, 48(6):998–1001
3. Saber R O, Murray R M. Consensus protocols for networks of dynamic agents. In: Proceedings of the American Control Conference, Denver, Colorado, 2003. 951–956
4. Cucker F, Smale S. Emergent behavior in flocks. IEEE Trans Automat Control, 2007, 52(5):852–862
5. Hendrickx J M, Blondel V D. Convergence of different linear and nonlinear Vicsek models. In: Proceedings of the 17th International Symposium on Mathematical Theory of Networks and Systems, Kyoto, Japan, 2006. 1229–1240