Observation of radiation environment in the International Space Station in 2012–March 2013 by Liulin-5 particle telescopeJordanka Semkova, Tsvetan Dachev, Rositza Koleva, Nikolay Bankov, Stefan Maltchev, Victor Benghin, Vyacheslav Shurshakov and Vladislav PetrovJ. Space Weather Space Clim., 4 (2014) A32DOI: https://doi.org/10.1051/swsc/2014029