STEPINS, D. Examination of Power Converters with Modulated Switching Frequency. Elektronika ir Elektrotechnika, [S. l.], v. 105, n. 9, p. 33-38, 2010. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/9164. Acesso em: 4 dec. 2021.