1. Geothermal situation in Greece;Fytikas;Geothermics,1987
2. Geothermal energy in ancient Greece: from mythology to late antiquity (3rd century A.D;Fytikas,1999
3. EU energy and transport in figures – statistical pocketbook,2010
4. BP statistical review of world energy,2009
5. Fytikas M, Andritsos N, Karydakis G, Kolios N, Mendrinos D, Papachristou M. Geothermal exploration and development activities in Greece during 1995–1999. In: S. Rybach et al., editor. Proceedings World Geothermal Congress 2000. Kyushu-Tohoku, Japan; May 28–June 10, 2000.