1. Hvordan Får Vi Mere Og Bedre Kollektiv Trafik for Pengene? Bud På Fremtidens Organisering Af Den Kollektive Trafik I Greater Copenhagen. Debatoplæg;Als,2017
2. Thredbo at thirty: review of past papers and reflections;Bray;Res. Transport. Econ.,2018
3. Transforming Bus Travel. Partnership Plus;Centro,2013
4. Danish Transport, Construction and Housing Authority, 2021. Passagertal. https://passagertal.dk. (Accessed 5 January 2021).
5. Sustainable and Smart Mobility Strategy,2020