Belyanin, A. F., M. I. Samoylovich, and V. D. Jitkovsky. 2005. “3D Layered Structures As the Basis for Non-Heated Cathodes and Active Elements of Photodiodes”. Technology and Design in Electronic Equipment, no. 1 (February), 31-35. https://www.tkea.com.ua/index.php/journal/article/view/TKEA2005.1.31.