Andersen, Ove, Benjamin B. Krogh, Kristian Torp, y Harry Lahrmann. «Hurtigste Versus Mest brændstoføkonomiske Ruter». Proceedings from the Annual Transport Conference at Aalborg University 20, no. 1 (diciembre 31, 2013). Accedido julio 22, 2024. https://journals.aau.dk/index.php/td/article/view/5716.