Ecke, Lisa, Miriam Magdolen, Bastian Chlond, and Peter Vortisch. “Tracing the Effects of the Covid-19 Pandemic on Car Usage in Germany - an Analysis of the German Mobility Panel”. European Journal of Transport and Infrastructure Research 21, no. 3 (August 19, 2021): 64–81. Accessed October 24, 2021. https://journals.open.tudelft.nl/ejtir/article/view/5467.