https://www.boe.es/boe/dias/2021/12/30/pdfs/BOE-A-2021-21788.pdf
https://www.esri.ie/system/files/publications/WP677_0.pdf
https://www.resolutionfoundation.org/publications/what-happens-after-the-clapping-finishes/
https://www.socialeurope.eu/2017/07/time-eu-fair-movement-directive/