@misc{indiciaee0d7e0223dc8, 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/19970037304}, note = {Source identifier: 19970037304} }