@article{Chen:2021G4,
  author = "Chen, Long  and  Li, Xin  and  Ge, Lisi  and  Liu, Hu  and  Sun, Qinning  and  Wang, Yang  and  Xia, Junji  and  Zhu, Fengrong  and  Zhang, Yong",
  title = "{Application of the nitrogen laser calibration system in LHAASO-WFCTA}",
  doi = "10.22323/1.395.0269",
  journal = "PoS",
  year = 2021,
  volume = "ICRC2021",
  pages = "269"
}