@misc{indiciae0ba84a77f84b,
  title = {Investigating Material Approximations in Spacecraft Radiation Analysis},
  author = {Walker, Steven A. and Slaba, Tony C. and Clowdsley, Martha S. and Blattnig, Steve R.},
  year = {2011},
  url = {https://ntrs.nasa.gov/citations/20110013240},
  note = {Source identifier: 20110013240}
}