
https://insightcrime.org/news/digital-gold-rush-how-bitcoin-helps-organized-crime/

http://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32014L0065&from=EN

https://ecipe.org/wp-content/uploads/2019/03/ECI_19_OccasionalPaper_Competition_01_2019-1.pdf