TY  - RPRT
TI  - The Schwartzwalder uranium deposit, II: Age of uranium mineralization and lead isotope constraints on genesis
AU  - K.R. Ludwig
AU  - A. R. Wallace
AU  - K. R. Simmons
PY  - 1985
DO  - 10.2113/gsecongeo.80.7.1858
UR  - https://pubs.usgs.gov/publication/70013073
ID  - 70013073
ER  -