TY  - RPRT
TI  - 40AR/39Ar ages of six Apollo 15 impact melt rocks by laser step heating
AU  - G. Brent Dalrymple
AU  - Graham Ryder
PY  - 2012
DO  - 10.1029/91gl01143
UR  - https://pubs.usgs.gov/publication/70243172
ID  - 70243172
ER  -