Bardyk YI, Kosteriev MV, Vozhakov RV, Bolotnyi MP. Estimation of technical condition and forecasting the working capacity of power transformers based on the fuzzy-set theory. Вісник ВПІ [Internet]. 2010Nov.12 [cited 2025Apr.4];(2):83-7. Available from: https://visnyk.vntu.edu.ua./index.php/visnyk/article/view/1205