@misc{indiciae13286bf0622c,
  title = {Cryogenic radiation effects on NERVA structural materials.},
  author = {Begley, J. A. and Dixon, C. E. and Lombardo, J. J.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19680045461},
  note = {Source identifier: 19680045461}
}