Руденко, Н., and І. Стужук. “Оptical Active Area Light-Diodes Parameters under Influence of Radiating Radiation”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 39, Oct. 2009, pp. 126-30, doi:10.20535/RADAP.2009.39.126-130.