Papadopoulou-VryniotiKyriaki. “The Role of Epikarst in the Morphogenesis of the Karstic Forms, Especially Hollow Forms in Greece”. Acta Carsologica 33, no. 1 (May 18, 2016). Accessed July 11, 2020. https://ojs.zrc-sazu.si/carsologica/article/view/325.