Sources: 

http://www.leeds.ac.uk/educol/documents/00002261.htm

https://en.wikipedia.org/wiki/Frankfurt_School

https://www.jstor.org/stable/192032

https://www.jstor.org/stable/3341480

https://en.wikipedia.org/wiki/The_Authoritarian_Personality

https://sgennaro.blog.yorku.ca/files/2011/01/gennaro_writing-sample_marcuse.pdf

https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1467-8675.1994.tb00007.x

https://en.wikipedia.org/wiki/Denazification

https://www.amazon.co.uk/Fascism-Career-Concept-Paul-Gottfried/dp/0875804934