@article{ref1,
title="Fluctuations in mental efficiency",
journal="British journal of psychology (1904)",
year="1920",
author="Muscio, B.",
volume="10",
number="4",
pages="327-344",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0950-5652",
doi="10.1111/j.2044-8295.1920.tb00032.x",
url="http://dx.doi.org/10.1111/j.2044-8295.1920.tb00032.x"
}