@misc{indiciae37942ddc1f52,
  title = {Are supernova remnants quasi-parallel or quasi-perpendicular accelerators},
  author = {Spangler, S. R. and Leckband, J. A. and Cairns, I. H.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890015577},
  note = {Source identifier: 19890015577}
}