TY  - RPRT
TI  - Obsidian hydration dating of volcanic events
AU  - I. Friedman
AU  - J. Obradovich
PY  - 2017
DO  - 10.1016/0033-5894(81)90126-5
UR  - https://pubs.usgs.gov/publication/70012031
ID  - 70012031
ER  -