https://irpimedia.irpi.eu/wp-content/uploads/2023/06/In-300-mila-attorno-allaeroporto.pdf
https://theconversation.com/el-lanzamiento-de-penaltis-en-el-futbol-tiene-mas-de-ciencia-que-de-loteria-229154
https://www.imf.org/external/pubs/ft/fandd/2021/12/pdf/Kimball.pdf
https://uk.sports.yahoo.com/news/austria-salzburg-refuse-play-second-144318621.html