TY - RPRT TI - Multivariate analysis of ATR-FTIR spectra for assessment of oil shale organic geochemical properties AU - Kathryn E. Washburn AU - Justin E. Birdwell PY - 2013 DO - 10.1016/j.orggeochem.2013.07.007 UR - https://pubs.usgs.gov/publication/70074336 ID - 70074336 ER -