Perfiljev, V. I., Plaksin, S. V. and Sokolovsky, S. I. (2004) “Semiconductor oscillator module with frequency multiplication for EHF therapy equipment”, Technology and design in electronic equipment, (4), pp. 33-37. Available at: https://www.tkea.com.ua/index.php/journal/article/view/TKEA2004.4.33 (Accessed: 14May2026).