Alvarez-Zarikian, Carlos A.; Soter, Steven; Katsonopoulou, Dora (2008). «Recurrent Submergence and Uplift in the Area of Ancient Helike, Gulf of Corinth, Greece: Microfaunal and Archaeological Evidence». Journal of Coastal Research. 24 (1A): 110–125. JSTOR30133726. doi:10.2112/05-0454.1
Alvarez-Zarikian, Carlos A.; Soter, Steven; Katsonopoulou, Dora (2008). «Recurrent Submergence and Uplift in the Area of Ancient Helike, Gulf of Corinth, Greece: Microfaunal and Archaeological Evidence». Journal of Coastal Research. 24 (1A): 110–125. JSTOR30133726. doi:10.2112/05-0454.1