@misc{indiciae22b14eae3806,
  title = {Primary cosmic ray positrons and galactic annihilation radiation},
  author = {Lingenfelter, R. E. and Ramaty, R.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19810028005},
  note = {Source identifier: 19810028005}
}