Quantification of river valley major diversion impact at Kyllini coastal area (W. Peloponnesus, Greece) with remote sensing techniques - Fountoulis, I.; Vassilakis, Emm.; Mavroulis, S.; Alexopoulos, J.; Erkeki, A. (2nd INQUA-IGCP-567 International Workshop on Active Tectonics, Earthquake Geology, Archaeology and Engineering, 2011)