Autonomous power supply system for light sensor of illumination measurement test benchTetervenok, Oleg; Galkin, Ilja; Armas, JelenaScientific Journal of Riga Technical University. Electrical, control and communication engineering2012 / p. 30-35 : ill Research and development of measurement solution and methodology for assessment of light reflection from surfaces = Mõõtelahenduse ja -metoodika uurimine ning arendamine pindadelt valguse peegeldumise hindamiseksVarjas, Toivo2021 https://www.ester.ee/record=b5473279*est https://digikogu.taltech.ee/et/Item/8a29147b-e21f-4273-aa1e-424bce74d20e https://doi.org/10.23658/taltech.60/2021 Valgus liigub teosammulKrustok, JüriEesti Päevaleht1999 / 11. märts, lk. 11 https://artiklid.elnet.ee/record=b1684314*est