HOGAN, Michael C. The Encyclopedia of Earth: Thracian Sea [online]. National Council for Science and the Environment, Washington, DC, USA, rev. 13.05.2013 [cit. 2014-10-31]. Dostupné online. (anglicky)
geographic.org
Thracian Sea [online]. National Geospatial-Intelligence Agency, Bethesda, MD, USA [cit. 2014-10-31]. Dostupné online. (anglicky)
iene.gr
NIKOLAOU, Konstantinos A. Recent Developments in Exploration and Production of Hydrocarbons in Greece [online]. Hellenic Petroleum, s. a. Athény, GR, rev. 30.05.2012 [cit. 2014-10-31]. Dostupné online. (anglicky)
web.archive.org
Bacterial and organic matter distribution in the sediments of the Thracian Sea [online]. Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC), Heraklion, Crete, GR, rev. 23.12.1013 [cit. 2014-10-31]. Dostupné v archivu pořízeném dne 2014-10-31. (anglicky)
