@misc{indiciae06a315b21cd7,
  title = {Techniques in balloon X-ray astronomy.},
  author = {Peterson, L. E. and Pelling, R. M. and Matteson, J. L.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720057950},
  note = {Source identifier: 19720057950}
}