BARTKEVICIUS, S. Periodic time-domain analysis based on approximation by splines and harmonic balance. Elektronika ir Elektrotechnika, [S. l.], v. 23, n. 5, 1999. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/16726. Acesso em: 29 apr. 2024.