Lekkas, E. (1988). Geologikē domē kai geodynamikē exelixē tēs oroseiras toy Koziaka (Dytikē Thessalia): = Geological structure and geodynamic evolution of the Koziakas mountain range (western Thessaly). Ethniko kai Kapodistriako Panepistēmio, Geōlogiko Tmēma, Tomeas Dynamikēs Tektonikēs kai Efarmosmenēs Geōlogias.
Chicago-Zitierstil (17. Ausg.)Lekkas, Euthymios. Geologikē Domē Kai Geodynamikē Exelixē Tēs Oroseiras Toy Koziaka (Dytikē Thessalia): = Geological Structure and Geodynamic Evolution of the Koziakas Mountain Range (western Thessaly). Athens: Ethniko kai Kapodistriako Panepistēmio, Geōlogiko Tmēma, Tomeas Dynamikēs Tektonikēs kai Efarmosmenēs Geōlogias, 1988.
MLA-Zitierstil (9. Ausg.)Lekkas, Euthymios. Geologikē Domē Kai Geodynamikē Exelixē Tēs Oroseiras Toy Koziaka (Dytikē Thessalia): = Geological Structure and Geodynamic Evolution of the Koziakas Mountain Range (western Thessaly). Ethniko kai Kapodistriako Panepistēmio, Geōlogiko Tmēma, Tomeas Dynamikēs Tektonikēs kai Efarmosmenēs Geōlogias, 1988.