@misc{indiciae3d20040c102d,
  title = {The design of asymmetric 4 pi shields for space reactors},
  author = {Engle, W. W., Jr. and Childs, R. L. and Mynatt, F. R.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720009959},
  note = {Source identifier: 19720009959}
}