TY  - RPRT
TI  - A rapid geochemical spectrophotometric determination of tungsten with dithiol
AU  - E. P. Welsch
PY  - 1983
DO  - 10.1016/0039-9140(83)80203-3
UR  - https://pubs.usgs.gov/publication/70011337
ID  - 70011337
ER  -