Scientific American, 6 June, 2016. http://bit.ly/1XydaEg.

Solomon, S., J. Greenberg, J. Schimel, J. Arndt, and T. Pyszczynski. «Human Awareness of Mortality and the Evolution of Culture». The Psychological Foundations of Culture. — Mahwah, NJ: Lawrence Erlbaum Associates, 2003, pp. 15–40.