GIEDRA, Kazimieras; JANULEVIČIUS, Algirdas. Tractor ballasting in field transport work. Transport, [S. l.], v. 20, n. 4, p. 146–153, 2005. DOI: 10.3846/16484142.2005.9638012. Disponível em: https://journals.vilniustech.lt/index.php/Transport/article/view/8356. Acesso em: 4 jul. 2025.