TY - RPRT TI - Sampling and Characterization of Coal Basins as an Alternative Rare-Earth Element Resource AU - Kay, John P. AU - Folkedahl, Bruce C. AU - Nyberg, Carolyn M. AU - Feole, Ian K. PY - 2022 DO - 10.2172/2998459 UR - https://www.osti.gov/biblio/2998459 ID - 2998459 ER -