@misc{indiciae332013d68090,
  title = {Improved pulse shape discriminator for fast neutron-gamma ray detection system},
  author = {Lockwood, J. A. and St. Onge, R.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690000467},
  note = {Source identifier: 19690000467}
}