TY - RPRT TI - Tar yields from low-temperature carbonization of coal facies from the Powder River Basin, Wyoming, USA AU - Ronald W. Stanton AU - Peter D. Warwick AU - Sharon M. Swanson PY - 2005 DO - 10.1016/j.coal.2005.02.002 UR - https://pubs.usgs.gov/publication/70029571 ID - 70029571 ER -