Institution: | 1. Research Center for Astronomy and Applied Mathematics, Academy of Athens, Soranou Efesiou 4, 11527 Athens, Greece;2. Institute of Applied Geophysics, 129128 Moscow, Russia;3. General Department of Mathematics, Technological Education Institute of Piraeus, Aigaleo, 12244 Athens, Greece;4. Laboratory of Climatology and Atmospheric Environment, Faculty of Geology, University of Athens, Panepistimiopolis Zografou, 15784 Athens, Greece |