TY - RPRT TI - Characterization of oil shale, isolated kerogen, and post-pyrolysis residues using advanced 13 solid-state nuclear magnetic resonance spectroscopy AU - Xiaoyan Cao AU - Justin E. Birdwell AU - Mark A. Chappell AU - Yuan Li AU - Joseph J. Pignatello AU - Jingdong Mao PY - 2013 DO - 10.1306/09101211189 UR - https://pubs.usgs.gov/publication/70044353 ID - 70044353 ER -