@misc{indiciae6f763c93cca7,
  title = {Gamma-ray lines from interstellar grains},
  author = {Lingenfelter, R. E. and Ramaty, R.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770035527},
  note = {Source identifier: 19770035527}
}