1. Greenhouse gas emissions from transport in Europe. https://www.eea.europa.eu/data-and-maps/indicators/transport-emissions-of-greenhouse-gases/transportemissions-of-greenhouse-gases-12
2. Feldman, O., Lugovoi, A., Parker, A., Farooq, S.: Guidelines to Innovative Financing (2019)
3. International Energy Agency: Municipal Transport Financing Act (GVFG) and Regionalisation Act (RegG) (2017). https://www.iea.org/policiesandmeasures/pams/germany/name-31423-en.php
4. Daude, P.: Corporate Mobility Management in Stuttgart–2MOVE2 (2017). https://www.cities-for-mobility.net/news/corporate-mobility-management-in-stuttgart-2move2/ and interview with Patrick Daude at Stuttgart
5. LCA Law: The 2017 Italian Financial Law: News Concerning Labor. Family, and Transportation, 2016–2018 (2017)