Mai, V. I., V. I. Superson, and M. I. Ugrin. “Frequency Multiplier in the 35–40 GHz Frequency Range”. Technology and design in electronic equipment, no. 3 (June 30, 2003): 40. Accessed June 23, 2026. https://www.tkea.com.ua/index.php/journal/article/view/TKEA2003.3.40.