Influence of Some Additives on the Efficiency of Viscosity Index Improver for Base Lubricating Oils. Journal of Engineering, [S. l.], v. 20, n. 01, p. 31–41, 2014. DOI: 10.31026/j.eng.2014.01.03. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/1919. Acesso em: 29 mar. 2025.