@article{ref1,
title="Four cases of "regression" in soldiers",
journal="Journal of abnormal psychology (1906)",
year="1920",
author="McDougall, W.",
volume="15",
number="2-3",
pages="136-156",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0145-2339",
doi="10.1037/h0071415",
url="http://dx.doi.org/10.1037/h0071415"
}