Timmermans, Jean-Marc, Julien Matheys, Joeri van Mierlo, and Philippe Lataire. “Environmental Rating of Vehicles With Different Fuels and Drive Trains: A Univocal and Applicable Methodology”. European Journal of Transport and Infrastructure Research 6, no. 4 (September 1, 2006). Accessed July 17, 2024. https://journals.open.tudelft.nl/ejtir/article/view/3455.