https://theconversation.com/de-la-arcilla-al-movil-antiguos-y-nuevos-diccionarios-224706
https://www.socialeurope.eu/2017/07/european-safe-bond-handle-care/
https://focusweb.org/wp-content/uploads/2021/02/FGS_PB-1_rev-2.pdf
https://ec.europa.eu/info/sites/info/files/proposal-regulation-single-market-digital-services-digital-services-act_en.pdf