@misc{indiciaea77c95f87e0f,
  title = {Sampling of Silicon Powder for Impurity Analysis},
  author = {Yamakawa, K. A. and Mccullough, O. R.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19830000590},
  note = {Source identifier: 19830000590}
}