@article{xiong2021observer,
  title={Observer-based adaptive fixed-time formation control for multi-agent systems with unknown uncertainties},
  author={Xiong, Tianyi and Gu, Zhou},
  journal={Neurocomputing},
  volume={423},
  pages={506--517},
  year={2021},
  publisher={Elsevier}
}

Tianyi Xiong, Zhou Gu*. Observer-based adaptive fixed-time formation control for multi-agent systems with unknown uncertainties. Neurocomputing, Jan. 2021, 423: 506-517.（二区）