@article{Zhang:2021XS,
  author = "Zhang, Yi  and  Chen, S.Z.  and  Wang, Xiang-Yu  and  Liu, Ruo-Yu",
  title = "{Morphology of Gamma-ray Halos around Middle-aged Pulsars: Influence of the Pulsar Proper Motion}",
  doi = "10.22323/1.395.0669",
  journal = "PoS",
  year = 2021,
  volume = "ICRC2021",
  pages = "669"
}