https://www.frontier-economics.com/media/5550/a-wholesale-gas-price-cap-in-europe.pdf
https://eur-lex.europa.eu/legal-content/FR/TXT/PDF/?uri=CELEX:32019L2121&from=EN
https://www.bruegel.org/dataset/national-energy-policy-responses-energy-crisis
https://cdn.who.int/media/docs/default-source/scientific-advisory-group-on-the-origins-of-novel-pathogens/sago-tors-final-20-aug-21_-(002).pdf