https://www.unfpa.org/data/world-population-dashboard
https://blogs.lse.ac.uk/europpblog/2021/11/05/who-should-pay-for-a-states-wrongdoings/
https://www.socialeurope.eu/2017/07/49234/
https://theconversation.com/el-lanzamiento-de-penaltis-en-el-futbol-tiene-mas-de-ciencia-que-de-loteria-229154