Bitcoin: Next Cycle Could Be Bigger - by Jesse Myers
Bitcoin (BTC USD) Price Volatility May Spike After Historic Lull - Bloomberg
The Age of Cryptocurrency: How Bitcoin and the Blockchain Are Challenging the Global Economic Order: Vigna, Paul, Casey, Michael J.: 9781250081551: Amazon.com: Books
Dissecting Bitcoin's “4 Year Cycle” - by Anthony Pompliano
Bitcoin: The Black Hole: Stetler, Warren: 9798736490769: Amazon.com: Books
Why I Believe Bitcoin's Collapse Is Imminent (BTC-USD) | Seeking Alpha