TY  - RPRT
TI  - A test of the 40Ar/39Ar age spectrum technique on some terrestrial materials
AU  - M. A. Lanphere
AU  - G. Brent Dalrymple
PY  - 1971
DO  - 10.1016/0012-821x(71)90020-3
UR  - https://pubs.usgs.gov/publication/70010332
ID  - 70010332
ER  -