Hanssen, Jan Usterud, and Jon-Terje Bekken. “Lettbaner - Hvorfor Har Så Mange Europeiske Byer Valgt Denne Formen for Kollektivtransport?”. Proceedings from the Annual Transport Conference at Aalborg University 12, no. 1 (December 31, 2005). Accessed May 1, 2024. https://journals.aau.dk/index.php/td/article/view/5110.