VĖJELIS, R.; ZAJANČKAUSKAS, A. The Research of Pulse Width Modulation in Agriculture Automatic. Elektronika ir Elektrotechnika, [S. l.], v. 90, n. 2, p. 85-88, 2009. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/10521. Acesso em: 4 oct. 2022.