1. Acatech & Körber-Stiftung. (2018). TechnikRadar 2018. Was die Deutschen über Technik denken (p. 94). https://www.acatech.de/publikation/technikradar-2018-was-die-deutschen-ueber-technik-denken/download-pdf/?lang=de.
2. An exploratory empirical analysis of willingness to hire and pay for flying taxis and shared flying car services;Ahmed;Journal of Air Transport Management,2021
3. The theory of planned behavior;Ajzen;Organizational Behavior and Human Decision Processes,1991
4. Factors affecting the adoption and use of urban air mobility;Al Haddad;Transportation Research Part a: Policy and Practice,2020
5. Understanding age differences in PDA acceptance and performance;Arning;Computers in Human Behavior,2007