TY  - RPRT
TI  - Assessment of critical minerals: Updated application of an early-warning screening methodology
AU  - Erin A. McCullough
AU  - Nedal Nassar
PY  - 2017
DO  - 10.1007/s13563-017-0119-6
UR  - https://pubs.usgs.gov/publication/70191019
ID  - 70191019
ER  -