Stamatopoulos, Leonidas, and Giovanni Palmentola. “Traces of Pre – Tymphian Glaciation on Athamanion Massif, Pindos Mountain Chain, Greece”. Geografia Fisica e Dinamica Quaternaria 40, no. 1 (June 30, 2017): 97–102. Accessed January 3, 2025. https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/105.