1. Dean, J. (12/08/2017). “Plundering of £52m highlights dangers in the digital gold rush”, The Times (London/Ireland). URL:  
  2. Brockett, M. (12/09/2017). “Bitcoin ‘Looks Remarkably Like A Bubble,’ New Zealand's Central Banker Warns”. URL:  
  3. Associated Press. (12/11/2017 ). “Bitcoin futures soar amid frenzy over virtual currency.” Chicago Tribune. URL:  
  4. Bird, Steven, Edward Loper and Ewan Klein (2009), Natural Language Processing with Python. O’Reilly Media Inc. 
  5. Frankel, M (2017). Is a Bitcoin IRA right for you? TheMotleyFool, URL: https://www.fool.com/retirement/2017/10/01/is-a-bitcoin-ira-right-for-you.aspx 
  6. Popper, N.(2015) Bitcoin Exchange Receives First License in New York State. New York Times. URL:
  7. New York State Department of Financial Services. (2015). “Title 23. Chapter 1 Regulations of the Superintendent of Financial Services. Part 200 Virtual Currencies” URL :  
  8. Databases: LexisNexis and WorldNews Access to collect data.
  9. Shin, L. (2017). What Bitcoin’s History Says About its Future. Forbes. URL:
  10. ASagalovitch - Original Proposal "Discovering how news changes in different cities"  " URL https://www.authorea.com/users/175476/articles/215246-discovering-how-news-changes-in-different-cities\cite{httpsgithubcomcoffee1leaguepui2017_as9788blobmasterbitcoin_news_analysis_ipynb}