TY  - RPRT
TI  - Preliminary testing of a prototype portable X-ray fluorescence spectrometer
AU  - Patten, L. L.
AU  - Anderson, N. B.
AU  - Stevenson, J. J.
PY  - 1982
UR  - https://ntrs.nasa.gov/citations/19830014310
ID  - 19830014310
ER  -