@misc{indiciae742b5cd629b3,
  title = {Time-dependent cosmic ray shocks with injection - A progress report},
  author = {Donohue, D. J. and Zank, G. P.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19930055996},
  note = {Source identifier: 19930055996}
}