https://publications.parliament.uk/pa/bills/cbill/58-03/0346/220346.pdf
https://theconversation.com/espana-supone-el-1-del-mercado-del-arte-global-ni-tan-mal-224584
https://www.regjeringen.no/contentassets/1febbbb2c4fd4b7d92c67ddd353b6ae8/en-gb/pdfs/ki-strategi_en.pdf