TY - RPRT TI - Mode of occurrence of arsenic in feed coal and its derivative fly ash, Black Warrior Basin, Alabama AU - R. A. Zielinski AU - A. L. Foster AU - G.P. Meeker AU - I. K. Brownfield PY - 2007 DO - 10.1016/j.fuel.2006.07.033 UR - https://pubs.usgs.gov/publication/70032828 ID - 70032828 ER -