@article{9017,
  author = {J. Kirk},
  title = {Pitch-angle anisotropy of low-energy ions at interplanetary shocks},
  year = {1988},
  journal = {The Astrophysical Journal},
  volume = {324},
  pages = {557},
  month = {Jan-01-1988},
  issn = {0004-637X},
  url = {http://articles.adsabs.harvard.edu/full/1988ApJ...324..557K},
  doi = {10.1086/165916},
}