
https://foreignpolicy.com/2023/06/23/who-blew-up-the-nord-stream-pipeline/

https://pdf.sciencedirectassets.com/272083/1-s2.0-S1090951623X00030/1-s2.0-S1090951622001109/main.pdf

https://www.openmarketsinstitute.org/publications/sling-de-economizing-antitrust-law-starts-with-market-definition