Tselentis, B. S., Prokopiou, D. G., Bousbouras, D., & Toanoglou, M. (?????.).  (2007).  Environmental impacts caused by the tourist industry in Elafonisos Island and the Neapoli district, Greece. WIT Transactions on Ecology and the Environment.

Prokopiou, D. G., Tselentis, B. S., & Bousbouras, D. (?????.).  (2008).  Tourist development and the environment: The case of Cephalonia and Ithaca. WIT Transactions on Ecology and the Environment.