TY  - RPRT
TI  - Determination of elements in National Bureau of Standards' geological reference materials SRM 278 obsidian and SRM 688 basalt by inductively coupled argon plasma-atomic emission spectrometry
AU  - J.G. Crock
AU  - F.E. Lichte
AU  - Paul H. Briggs
PY  - 2007
DO  - 10.1111/j.1751-908x.1983.tb00395.x
UR  - https://pubs.usgs.gov/publication/70011412
ID  - 70011412
ER  -