1. https://finance.yahoo.com/quote/^DJI/history. Zugegriffen: 19 Mai 2020
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3. J. Galbraith, The Great Crash of 1929 (Houghton Mifflin, New York, 2009)
4. R. Shiller, Irrational Exuberance, 2. Aufl. (Broadway Books, New York, 2005)
5. R. Thaler, C. Sunstein, Nudge (Penguin, 2009)