Investigation of changes in the spectral characteristics of lamps of ultraviolet and infrared radiation: a reviewAlexey Scherbakov, Dmitry Savenkov, Valentina Doroshenko, Igor Osipenko and Dmitriy GladckihE3S Web of Conf., 402 (2023) 14009DOI: https://doi.org/10.1051/e3sconf/202340214009