TY  - RPRT
TI  - Mineral discrimination using a portable ratio-determining radiometer
AU  - G. Whitney
AU  - M. J. Abrams
AU  - Alexander F.H. Goetz
PY  - 1983
DO  - 10.2113/gsecongeo.78.4.688
UR  - https://pubs.usgs.gov/publication/70011232
ID  - 70011232
ER  -