@misc{indiciaec26aeb59b598,
  title = {The characterization of materials using x ray diffraction},
  author = {Sprecher, A. F., Jr. and West, Harvey A. and Fahmy, A. A.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930021779},
  note = {Source identifier: 19930021779}
}