@misc{indiciaea1640b689772,
  title = {Process Research on Polycrystalline Silicon Material (PROPSM)},
  author = {Culik, J. S. and Wrigley, C. Y.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19850011213},
  note = {Source identifier: 19850011213}
}