@article{Yang2020a,
  author = "Z. Yang and B. Zhang and J. Lei and T. Dang",
  title = "Nonlinear Response of the Cross Polar Cap Potential to Solar Wind Density Under Northward Interplanetary Magnetic Field",
  year =  2020 ,
  journal = "Geophysical Research Letters",
  volume = 47,
  number = 8,
  keywords = "risrn",
  doi = "https://doi.org/10.1029/2020GL087559",
  url = "https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020GL087559"
}