Solar Simulator on the Basis of Powerful Light-Emitting DiodesOxana Aldoshina, Vyacheslav Yugay, Nurbol Kaliaskarov, Ulan Esenjolov and Saltanat NesipovaMATEC Web Conf., 155 (2018) 01035DOI: https://doi.org/10.1051/matecconf/201815501035