TY  - RPRT
TI  - Concentration and distribution of sixty-one elements in coals from DPR Korea
AU  - Jiawen Hu
AU  - B. Zheng
AU  - R. B. Finkelman
AU  - B. Wang
AU  - M. Wang
AU  - S. Li
AU  - D. Wu
PY  - 2006
DO  - 10.1016/j.fuel.2005.08.037
UR  - https://pubs.usgs.gov/publication/70030339
ID  - 70030339
ER  -