Krukovsky, S. I., and N. Ya. Suvorotka. “Properties of Epitaxial GaAs Layers Doped With Rare Earth Elements”. Technology and design in electronic equipment, no. 2 (April 30, 2007): 47-51. Accessed March 25, 2026. https://www.tkea.com.ua/index.php/journal/article/view/TKEA2007.2.47.