Ajorlou et al., 2010 Amir Ajorlou, Ahmadreza Momeni, Amir G. Aghdam A class of bounded distributed control strategies for connectivity preservation in multi-agent systems IEEE Transactions on Automatic Control, 55 (12) (2010), pp. 2828–2833 Dimarogonas and Kyriakopoulos, 2008 Dimos V. Dimarogonas, Kostas J. Kyriakopoulos Connectedness preserving distributed swarm aggregation for multiple kinematic robots IEEE Transactions on Robotics, 24 (5) (2008), pp. 1213–1223 Gondran and Minoux, 1984 Michel Gondran, Michel Minoux Graphs and algorithms John Wiley & Sons Inc., New York (1984) Ji and Egerstedt, 2007 Meng Ji, Magnus Egerstedt Distributed coordination control of multiagent systems while preserving connectedness IEEE Transactions on Robotics, 23 (4) (2007), pp. 693–703 Kelley, 1975 John L. Kelley General topology Springer, New York (1975) Khalil, 2002 Hassan K. Khalil Nonlinear systems (3rd ed.)Prentice Hall, New Jersey (2002) Lin et al., 2005 Lin, Zhiyun, Francis, Bruce A., & Maggiore, Manfredi (2005). On the state agreement problem for multiple nonlinear dynamical systems. In Proc. of 16th IFAC world congress. Lin et al., 2007 Zhiyun Lin, Bruce A. Francis, Manfredi Maggiore State agreement for continuous-time coupled nonlinear systems SIAM Journal on Control and Optimization, 46 (1) (2007), pp. 288–307 Moreau, 2004 Moreau, Luc (2004). Stability of continuous-time distributed consensus algorithms. In Proc. of the 43th IEEE conf. on decision and control (pp. 3998–4003). Moreau, 2005 Luc Moreau Stability of multiagent systems with time-dependent communication links IEEE Transactions on Automatic Control, 50 (2) (2005), pp. 169–182 Olfati-Saber, 2006 Reza Olfati-Saber Flocking for multi-agent dynamic systems: algorithms and theory IEEE Transactions on Automatic Control, 51 (3) (2006), pp. 401–420 Olfati-Saber et al., 2007 Reza Olfati-Saber, J. Alex Fax, Richard M. Murray Consensus and cooperation in networked multi-agent systems Proceedings of the IEEE, 95 (1) (2007), pp. 215–233 Olfati-Saber and Murray, 2004 Reza Olfati-Saber, Richard M. Murray Consensus problems in networks of agents with switching topology and time-delays IEEE Transactions on Automatic Control, 49 (9) (2004), pp. 1520–1533 Ren and Beard, 2005 Wei Ren, Randal W. Beard Consensus seeking in multiagent systems under dynamically changing interaction topologies IEEE Transactions on Automatic Control, 50 (5) (2005), pp. 655–661 Tanner et al., 2007 Herbert G. Tanner, Ali Jadbabaie, George J. Pappas Flocking in fixed and switching networks IEEE Transactions on Automatic Control, 52 (5) (2007), pp. 863–868