@misc{indiciaeabbeb9a02fb8,
  title = {Shielding materials for highly penetrating space radiations},
  author = {Kiefer, Richard L. and Orwoll, Robert A.},
  year = {1995},
  url = {https://ntrs.nasa.gov/citations/19960007435},
  note = {Source identifier: 19960007435}
}