id: 70327788 dt: a an: 70327788 au: Vrettaros, John; Tagoulis, Alexis; Giannopoulou, Niki; Drigas, Athanasios ti: An empirical study on the use of web 2.0 by Greek adult instructors in educational procedures so: WSKS (2), 164-170 (2009). py: 2009 pu: la: EN cc: ut: ci: li: doi:10.1007/978-3-642-04757-2_18