Iversen, Erik. “Forventninger Til EU-Regulering Af Bilers Forurening Fra år 2000: Fremtidige EU-Normer for Luftforurening Fra Personbiler”. Proceedings from the Annual Transport Conference at Aalborg University 2, no. 1 (December 31, 1995). Accessed May 18, 2024. https://journals.aau.dk/index.php/td/article/view/3881.