TY  - RPRT
TI  - Graphic and algebraic solutions of the discordant lead-uranium age problem
AU  - L. R. Stieff
AU  - T. W. Stern
PY  - 1961
DO  - 10.1016/0016-7037(61)90116-8
UR  - https://pubs.usgs.gov/publication/70010750
ID  - 70010750
ER  -