@misc{indiciaee1da0397fafd,
  title = {Fast neutron shielding studies},
  author = {Beghian, L. E. and Clikemann, F. and Wilensky, S.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690022963},
  note = {Source identifier: 19690022963}
}