Keltner, D., The Power Paradox: How We Gain and Lose Influence (New York: Penguin Press, 2016; Kindle edn), ch. 4.
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McNish, J., and Silcoff, S., Losing the Signal: The Untold Story Behind the Extraordinary Rise and Spectacular Fall of BlackBerry (New York: Flatiron Books, 2015), 166–175.
