1. Matrix Analysis;Horn,1985
2. Algebraic Graph Theory;Godsil,2001
3. Consensus problems in networks of agents with switching topology and time-delays;Olfati-Saber;IEEE Trans. Autom. Control,2004
4. R. Olfati-Saber, R.M. Murray, Consensus protocols for networks of dynamic agents, in: Proc. American Control Conf., June 2003, pp. 951–956
5. Novel type of phase transitions in a system of self-driven particles;Vicsek;Phys. Rev. Lett.,1995