J. Przybysz, J. Olak, Z. Piątek. “Universal Current Transformer for Accurate Measurement of Short-Circuit Currents”. Acta Energetica, no. 01 (March 31, 2017): 101–106. Accessed December 19, 2025. https://www.actaenergetica.org/index.php/journal/article/view/163.