Struhljak, N. Ja., D. M. Zajachuk, S. I. Krukovsky, and V. I. Bosyi. 2006. “White Light-Emitting Diodes: Current State and Main Development Trends”. Technology and Design in Electronic Equipment, no. 3 (June), 3-11. https://www.tkea.com.ua/index.php/journal/article/view/TKEA2006.3.03.