Kolezhuk, K. V., V. N. Komashchenko, N. V. Yaroshenko, G. I. Sheremetova, and A. S. Maystrenko. “Rapid Measurement of Ultraviolet Radiation Power in the UV-A and UV-B+C Spectral Ranges”. Technology and Design in Electronic Equipment, no. 5, Oct. 2005, pp. 13-14, https://www.tkea.com.ua/index.php/journal/article/view/TKEA2005.5.13.