12th International Conference on Protection and Restoration of the Environment (PRE XII) Skiathos Island, Greece, 29 June–3 July, 2014. Issue 25 (6th January 2016) - Kanakoudis, Vasilis; Karakasidis, Theodoros E; Laspidou, Chrysi; Kungolos, Athanasios; Samaras, Petros