JUOSTAS, Antanas; JANULEVIČIUS, Algirdas. Evaluating working quality of tractors by their harmful impact on the environment. Journal of Environmental Engineering and Landscape Management, [S. l.], v. 17, n. 2, p. 106–113, 2009. DOI: 10.3846/1648-6897.2009.17.106-113. Disponível em: https://journals.vilniustech.lt/index.php/JEELM/article/view/6510. Acesso em: 10 may. 2025.