Impact of cosmic rays and solar energetic particles on the Earth’s ionosphere and atmospherePeter I.Y. Velinov, Simeon Asenovski, Karel Kudela, Jan Lastovicka, Lachezar Mateev, Alexander Mishev and Peter TonevJ. Space Weather Space Clim., 3 (2013) A14DOI: https://doi.org/10.1051/swsc/2013036
