@article{ref1,
title="On a new method for the study of concurrent mental operations and of mental fatigue",
journal="British journal of psychology (1904)",
year="1905",
author="McDougall, W.",
volume="1",
number="4",
pages="435-445",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0950-5652",
doi="10.1111/j.2044-8295.1905.tb00168.x",
url="http://dx.doi.org/10.1111/j.2044-8295.1905.tb00168.x"
}