@misc{cogprints6620,
editor = {Hubert Feger},
title = {Kognitionspsychologische Untersuchungen eines Rechenk{\"u}nstlers},
author = {J{\"u}rgen Bredenkamp},
publisher = {Hogrefe, G{\"o}ttingen},
year = {1990},
journal = {Wissenschaft und Verantwortung. Festschrift f{\"u}r Karl Josef Klauer},
keywords = {Rechenk{\"u}nstler, mental calculator, Gert Mittring},
url = {http://cogprints.org/6620/},
abstract = {A detailed analysis of the processes of a mental calculator (Gert Mittring) is given in this paper. It shows that seemingly exceptional tasks (e.g., mentally extracting the 137. root from a number with thousand figures within less than 20 seconds) can be described in the frame of conventional cognitive processes.}
}