PŁONECKI, L.; CENDROWICZ, J. Digital Controlled Hydraulic Drives of Working Machines. Engineering Transactions, [S. l.], v. 41, n. 3-4, p. 279–296, 1993. Disponível em: http://et.ippt.gov.pl/index.php/et/article/view/1568. Acesso em: 17 jan. 2026.