
https://www.uni-muenster.de/imperia/md/content/kfg-normenbegruendung/intern/publikationen/bayertz/16_bayertz_-_menschliche_natur.pdf

https://www.imf.org/external/pubs/ft/fandd/2020/06/long-term-economic-impact-of-pandemics-jorda.htm

http://www.ilo.org/wcmsp5/groups/public/—dgreports/—dcomm/—publ/documents/publication/wcms_604882.pdf