The depletion of the ozone layer in Greek school science textbooks, Psomiadis, Ploutarhos, Mandrikas Ahilleas, Tampakis Constantine M., Tsilidis M., Chalkidis Anthimos, Halkia Krystallia, and Skordoulis Konstantinos , International Meeting on Critical Analysis of School Science Textbook, IOSTE (International Organisation for Science and Technology Education), Hammamet, Tunisia, (2007)

Educational Software on Ozone Layer Depletion, Psomiadis, Ploutarhos, Chalkidis Anthimos, Tampakis Constantine M., and Skordoulis Constantine D. , 8th CBLIS (Computer Based Learning in Science) 2007 Conference, Crete, Greece, (2007)

A web based approach to teaching the subject “Renewable energy sources” in Technical Vocational Educational Schools in Greece using the ELearn web platform, Tampakis, Constantine M., Chalkidis Anthimos, Psomiadis Ploutarhos, and Saridaki A. , 8th CBLIS (Computer Based Learning in Science) 2007 Conference, Crete, Greece, (2007)