https://www.bruegel.org/policy-brief/european-union-gas-survival-plan-2023
https://www.theblockcrypto.com/post/120631/putin-suggests-openness-to-moving-energy-trade-to-crypto-from-dollar-in-the-future
https://reutersevents.com/events/reports/docs/magazine-november-2020.pdf
https://www.brookings.edu/techstream/how-do-recommender-systems-work-on-digital-platforms-social-media-recommendation-algorithms/