Contributions Concerning the Oscilloscopic Method, for checking the Clock-Hour Figure of the Vector Group of a Electric Transformer. Elektronika ir Elektrotechnika, [S. l.], v. 19, n. 8, p. 29–32, 2013. DOI: 10.5755/j01.eee.19.8.1929. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/1929.. Acesso em: 5 dec. 2025.