1. C. Song, Z. Qu, N. Blumm, and A.-L. Barabasi, Limits of predictability in human mobility, Science 327, 1018–1021 (2010).
2. M. Kosinski, D. Stillwell, and T. Graepel, Private traits and attributes are predictable from digital records of human behavior, Proceedings of the National Academy of Sciences of the USA 110, 5802–5805 (2013).
3. A.D.I. Kramer, J.E. Guillory, and J.T. Hancock, Experimental evidence of massive-scale emotional contagion through social networks. Proceedings of the National Academy of Sciences of the United States of America 111, 8788–8790.
4. J. Schmieder, Mit einem Bein im Knast — Mein Versuch, ein Jahr lang gesetzestreu zu leben (Bertelsmann, 2013).
5. R.H. Thaler and C.R. Sunstein, Nudge: Improving Decisions About Health, Wealth, and Happiness (Penguin, New York, 2008).