Ζαμπετάκη-Λέκκα Α., and Κεμερίδου Α. “METHODS OF STRATIGRAPHY: POSSIBILITIES & WEAKNESSES. DANGERS & PERSPECTIVES”. Bulletin of the Geological Society of Greece, vol. 39, no. 1, Sept. 2006, pp. 50-63, doi:10.12681/bgsg.18444.