@article{ref1,
title="The method of 'right and wrong cases' ('constant stimuli') without Gauss's formulae",
journal="British journal of psychology (1904)",
year="1908",
author="Spearman, C.",
volume="2",
number="3",
pages="227-242",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0950-5652",
doi="10.1111/j.2044-8295.1908.tb00176.x",
url="http://dx.doi.org/10.1111/j.2044-8295.1908.tb00176.x"
}