@article{ref1,
title="The need to predict and control under conditions of threat",
journal="Journal of personality",
year="1963",
author="Pervin, Lawrence A.",
volume="31",
number="4",
pages="570-587",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0022-3506",
doi="10.1111/j.1467-6494.1963.tb01320.x",
url="http://dx.doi.org/10.1111/j.1467-6494.1963.tb01320.x"
}