ΚΑΠΙΝΑ Β., ΓΕΩΡΓΑΚΟΠΟΥΛΟΣ Α., ΚΑΣΩΛΗ-ΦΟΥΡΝΑΡΑΚΗ Α. and ΦΙΛΙΠΠΙΔΗΣ Α. 2001. Study of behaviour of southern field lignite, Ptolemais lignite basin, during pyrolysis. Bulletin of the Geological Society of Greece. 34, 3 (Jan. 2001), 1205–1212. DOI:https://doi.org/10.12681/bgsg.17184.