TY  - RPRT
TI  - Search for plutonium-244 tracks in mountain pass bastnaesite
AU  - R.L. Fleischer
AU  - C. W. Naeser
PY  - 1972
DO  - 10.1038/240465b0
UR  - https://pubs.usgs.gov/publication/70001435
ID  - 70001435
ER  -