@article{ref1,
title="The effects of punishment on acts motivated by fear",
journal="Journal of experimental psychology",
year="1949",
author="Gwinn, G. T.",
volume="39",
number="2",
pages="260-269",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-1015",
doi="",
url="http://dx.doi.org/"
}