https://www.science.org/content/article/most-outstanding-leader-iberian-copper-age-was-woman
https://pages.rts.ch/la-1ere/programmes/cqfd/04-01-2021#11841150
https://www.nuffieldtrust.org.uk/files/2020-03/achieving-scale-and-spread-report-final.pdf
https://www.bruegel.org/dataset/national-energy-policy-responses-energy-crisis