The European Ionosonde Service: nowcasting and forecasting ionospheric conditions over Europe for the ESA Space Situational Awareness servicesAnna Belehaki, Ioanna Tsagouri, Ivan Kutiev, Pencho Marinov, Bruno Zolesi, Marco Pietrella, Kostas Themelis, Panagiotis Elias and Kostas TziotziouJ. Space Weather Space Clim., 5 (2015) A25DOI: https://doi.org/10.1051/swsc/2015026
