@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.}
}

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