Perrels, Adriaan, Veli Himanen, and Martin Lee-Gosselin. “Editorial: Identifying Building Blocks of Sustainable Transport – Lessons on External Effects from Both Sides of the Atlantic”. European Journal of Transport and Infrastructure Research 2, no. 4 (September 1, 2002). Accessed April 24, 2024. https://journals.open.tudelft.nl/ejtir/article/view/3720.