1. Investigating users' attitudes towards conventional and automated buses in twelve European cities;Alessandrini;International Journal of Transport Economics,2016
2. L’analyse de contenu [Content analysis];Bardin,1977
3. Content analysis in Communication Research;Berelson,1952
4. Pioneering driverless electric vehicles in Europe: The City Automated Transport System (CATS);Christie;Transportation Research Procedia,2016
5. Transit user perceptions of driverless buses;Dong;Transportation,2019