www.natlawreview.com/article/fca-consults-regulation-crypto-firms
www.mccarthy.ca/en/insightsblogscyberlex/uk-fca-publishes-guidance-cryptoassets
gowlingwlg.com/en/insights-resources/articles/2019/fca-clarifies-cryptoasset-regulation/
goo.gl/avTV66
www.fca.org.uk/publications/consultation-papers/cp19-3-guidance-cryptoassets
See also:
www.rahmanravelli.co.uk/articles/crypto-developers-and-uk-law/