@article{Hosokawa2011a,
  author = "K. Hosokawa and J. I. Moen and K. Shiokawa and Y. Otsuka",
  title = "Motion of polar cap arcs",
  year =  2011 ,
  journal = "J. Geophys. Res.",
  volume = 116,
  keywords = "rbo",
  doi = "10.1029/2010JA015906"
}