TY  - RPRT
TI  - Near infrared detection of ammonium minerals
AU  - M. D. Krohn
AU  - S. P. Altaner
PY  - 1987
DO  - 10.1190/1.1442362
UR  - https://pubs.usgs.gov/publication/70014849
ID  - 70014849
ER  -