TY  - RPRT
TI  - Sequential solvent extraction for the modes of occurrence of selenium in coals of different ranks from the Huaibei Coalfield, China
AU  - Y. Zhang
AU  - Gaisheng Liu
AU  - C. L. Chou
AU  - L. Wang
AU  - Y. Kang
PY  - 2007
DO  - 10.1186/1467-4866-8-14
UR  - https://pubs.usgs.gov/publication/70031564
ID  - 70031564
ER  -