Zerefos C. S., Gerasopoulos E., Tsagouri I., Psiloglou B, Belehaki A., Herekakis T., Bais A., Kazadzis S., Eleftheratos C., Kalivitis N., and Mihalopoulos N.: Evidence of gravity waves into the atmosphere during the March 2006 total solar eclipse, Atmospheric Chemistry and Physics Vol 7 p.4943-4951 , 2007