1. Bade, M. (2006). Marketing entlang der Autobahn. In G. Heinritz et al. (Hrsg.), Nationalatlas Deutschland – Leben in Deutschland, Band 12 (S. 130–131). Spektrum Akademischer Verlag.
2. Ballantyne, R., Hughes, K., Weiler, B. & Moscardo, G. (2008). Touristis’ use of roadside signage: A Case Study of the Great Southern Route, Gold Coast/Queensland. Sustainable Tourism CRC.
3. Beijer, D., Smiley, A. & Eizenmann, M. (2004). Observed Driver Glance Behaviour at Roadside Advertising Signs. In Transportation Research Record: Journal of the Transportation Research Board, 1899(01), 96–103.
4. Verkehr in Zahlen 2019/2020;BMVI,2019
5. Cerence (2022a). We are Cerence. https://cerence.gcs-web.com/about