@article{Cao:20168x,
  author = "Cao, Zhen  and  Zhang, Y.  and  Zhu, Fengrong",
  title = "{Cloud Monitoring using Nitrogen Laser for LHAASO Experiment }",
  doi = "10.22323/1.236.0641",
  journal = "PoS",
  year = 2016,
  volume = "ICRC2015",
  pages = "641"
}