@Article{TCNS-20_Hu-Bhowmick-Lanzon,
 author       = "Hu, J. and Bhowmick, P. and Lanzon, A.",
 title        = "Distributed adaptive time-varying group formation tracking for multi-agent systems with multiple leaders on directed graphs",
 journal      = "{IEEE} Transactions on Control of Network Systems",
 volume       = 7,
 number       = 1,
 pages        = "140-150",
 doi          = "10.1109/TCNS.2019.2913619",
 month        = mar,
 year         = 2020}