Butkus, Algis, and Saugirdas Pukalskas. “The Research into the Influence of Ecological Petrol Additives in the Automobile Laboratory”. Transport 19, no. 1 (February 28, 2004): 24-27. Accessed November 26, 2024. https://mma.vgtu.lt/index.php/Transport/article/view/8437.