TY  - RPRT
TI  - The determination of nanogram amounts of Chromium in urine by x-ray fluorescence spectroscopy
AU  - K. Beyermann
AU  - H. J. Rose
AU  - R.P. Christian
PY  - 1969
DO  - 10.1016/s0003-2670(00)89385-x
UR  - https://pubs.usgs.gov/publication/70011529
ID  - 70011529
ER  -