Thisgaard, Preben, and Rikke Tovbjerg Simonsen. “The Vordingborg Project - Co-Ordination of Public Transport Service”. Proceedings from the Annual Transport Conference at Aalborg University 10, no. 1 (December 31, 2003). Accessed May 2, 2024. https://journals.aau.dk/index.php/td/article/view/4648.