https://www.swissinfo.ch/eng/business/why-switzerland-doesn-t-want-to-join-the-european-union/47391050

https://www.theatlantic.com/magazine/archive/1891/07/the-neutrality-of-switzerland/634809/

https://scholarcommons.scu.edu/cgi/viewcontent.cgi?article=1144&context=historical-perspectives

https://en.wikipedia.org/wiki/Switzerland%E2%80%93European_Union_relations

https://www.eda.admin.ch/aboutswitzerland/en/home/politik-geschichte/die-schweiz-und-die-welt/neutralitaet.html#:~:text=The%20international%20community%20officially%20recognised%20Switzerland's%20neutrality%20in%201815.&text=Swiss%20neutrality%20dates%20back%20to,under%20the%20Thirty%20Years'%20War.

https://www.bbc.com/news/world-europe-17988450

https://abcnews.go.com/Business/wireStory/swiss-government-lines-eus-11th-round-sanctions-russia-102309874

https://www.politico.eu/article/switzerland-withdraws-application-to-join-the-eu/

https://www.bbc.com/news/world-europe-57251681

https://www.nytimes.com/1998/04/06/opinion/the-truth-about-switzerland.html

https://www.swissinfo.ch/eng/focus-page-foreign-policy_how-neutral-is-switzerland--really-/45810276