@misc{indiciae0c7ed28ea3dc,
  title = {Linear Calibration of Radiographic Mineral Density Using Video-Digitizing Methods},
  author = {Martin, R. Bruce and Papamichos, Thomas and Dannucci, Greg A.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19970023978},
  note = {Source identifier: 19970023978}
}