TY  - RPRT
TI  - Vacuum ultraviolet measurements of reflectance and luminescence from various rock samples
AU  - H.V. Watts
AU  - H.J. Goldman
PY  - 1968
DO  - 10.3133/ofr68317
UR  - https://pubs.usgs.gov/publication/ofr68317
ID  - ofr68317
ER  -