“Application of Fourier transforms and wavelet-spectrograms for identification of distortion modes of distribution networks 0,38/0,22 kV”, Вісник ВПІ, no. 1, pp. 71–79, Mar. 2015, Accessed: Oct. 11, 2026. Available: https://visnyk.vntu.edu.ua/index.php/visnyk/article/view/837