https://conservativereader.substack.com/p/francois-valentin-we-are-under-threat
https://www.parlament.gv.at/ZUSD/PDF/Enquete_BR_Zukunftsstrategien_Armut_43_2018.pdf
https://academic.oup.com/ia/article/99/1/219/6967342?login=false
https://santafe.edu/news-center/news/transmission-t-009-melanie-mitchell