
https://theconversation.com/que-el-dia-tenga-24-horas-y-no-mas-ni-menos-lo-decidieron-los-antiguos-egipcios-209435

https://eur-lex.europa.eu/legal-content/IT/TXT/PDF/?uri=CELEX:52019DC0406&from=FR

https://www.brookings.edu/articles/leveraging-behavioral-insights-to-mitigate-public-procurement-corruption-in-nigeria/