Παπαζησίμου Σ., and Καλαϊτζίδης Σ. “QUANTITATIVE MINERAL MATTER DETERMINATION IN LIGNITES USING X-RAY DLFRACTOMETRY AND POSITION SENSITIVE DETECTOR (XRD-PSD)”. Bulletin of the Geological Society of Greece 36, no. 1 (January 1, 2004): 464–473. Accessed April 30, 2024. https://ejournals.epublishing.ekt.gr/index.php/geosociety/article/view/16737.