Dzierżanowski, W., B. Miedziński, and Z. Okraszewski. “Directional Relay With a Hall Sensor for Mine MV Feeders With No Effective Earthing”. Elektronika ir Elektrotechnika 65, no. 1 (January 3, 2006): 25-27. Accessed April 26, 2024. https://eejournal.ktu.lt/index.php/elt/article/view/10548.