TY  - RPRT
TI  - Determination of thorium and of rare earth elements in cerium earth minerals and ores
AU  - M. K. Carron
AU  - D. L. Skinner
AU  - R.E. Stevens
PY  - 2002
DO  - 10.1021/ac60103a006
UR  - https://pubs.usgs.gov/publication/70010780
ID  - 70010780
ER  -