@article{ref1,
title="The development of fear in man and other animals",
journal="Child development",
year="1968",
author="Bronson, G. W.",
volume="39",
number="2",
pages="409-431",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0009-3920",
doi="",
url="http://dx.doi.org/"
}