• Application of diffuse reflectance spectroscopy for quick laboratory assessment of Estonian oil shale qualityTufail, Iram; Paris, Peeter; Jõgi, Indrek; Riisalu, HellaProceedings of the Estonian Academy of Sciences2020 / p. 134-142 : ill https://doi.org/10.3176/proc.2020.2.04 https://www.scopus.com/sourceid/11500153303 https://www.scopus.com/record/display.uri?eid=2-s2.0-85084190078&origin=inward&txGid=17fd351d74679806c8afdc7672e25be4 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=P%20EST%20ACAD%20SCI&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000539733200005