Vėjelis, R., and A. Zajančkauskas. “The Research of Pulse Width Modulation in Agriculture Automatic”. Elektronika ir Elektrotechnika 90, no. 2 (February 1, 2009): 85-88. Accessed December 5, 2024. https://eejournal.ktu.lt/index.php/elt/article/view/10521.