Rallakis, D., G. Siavalas, G. Oskay, D. Tsimiklis, and K. Christanis. “Maturity of Dispersed Organic Matter in Bituminous Formations of the Ionian Zone (Epirus Region, NW Greece)”. Bulletin of the Geological Society of Greece 47, no. 2 (January 24, 2013): 880–889. Accessed December 20, 2024. https://ejournals.epublishing.ekt.gr/index.php/geosociety/article/view/11127.