@misc{indiciae66eafe67b742,
  title = {Spacecraft contamination prediction and testing techniques},
  author = {Jeffery, J. A. and Maag, C. R. and Morelli, F. A.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19820034090},
  note = {Source identifier: 19820034090}
}