1. Argonne National Laboratory. (n.d.). The Greenhouse gases, Regulated Emissions, and Energy use in Technologies Model. https://greet.es.anl.gov
2. Bacchi, U. (2020). Escape from the city? Londoners lead Europe in COVID-inspired dreams of flight. Thomson Reuters Foundation News. https://news.trust.org/item/20201118230536-uv6o2/
3. BIS. (2021). Covid-19 accelerated the digitalisation of payments. https://www.bis.org/statistics/payment_stats/commentary2112.pdf
4. Blocksize-capital (2022). Decarbonizing bio-based fuels through the Verity Tracking platform. Internal Document.
5. Chainlink. (2021). What is a Blockchain Oracle? https://chain.link/education/blockchain-oracles