@misc{indiciae7e9e89fdc05b,
  title = {Gamma-rays from cosmic ray interactions in supernova shells},
  author = {Harding, A. K. and Mastichiadis, A. and Protheroe, R. J. and Szabo, A. P.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920054195},
  note = {Source identifier: 19920054195}
}