Gigerenzer, Gerd MPI for Psychological Research (Munich, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
Sedlmeier, P., Hertwig, R., & Gigerenzer, G. (1998). Are judgments of the positional frequencies of letters systematically biased due to availability? Journal of Experimental Psychology: Learning, Memory, and Cognition, 24(3), 754-770.