KOVAČEVIĆ, Dražen; MAKOVIĆ, Branko; SUMPOR, Davor. Analysis of the ECO Test Results for Vehicles in the Republic of Croatia. Promet - Traffic&Transportation, [S. l.], v. 19, n. 1, p. 21–28, 2007. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/2204. Acesso em: 26 aug. 2025.