Update:
www.whitecase.com/publications/alert/spain-enacts-first-legislation-regulate-cryptocurrencies
4actl02jlq5u2o7ouq1ymaad-wpengine.netdna-ssl.com/wp-content/uploads/2021/05/Legal-Landscapes-Governing-Digital-Tokens-in-the-European-Union.pdf
www.garrigues.com/es_ES/garrigues-digital/criptoactivos-sector-financiero-revolucion-mercado-retos-regulatorios