TY  - RPRT
TI  - Review of rare earth element concentrations in oil shales of the Eocene Green River Formation
AU  - Justin E. Birdwell
PY  - 2012
DO  - 10.3133/ofr20121016
UR  - https://pubs.usgs.gov/publication/ofr20121016
ID  - ofr20121016
ER  -