@article{ref1,
title="Task difficulty, relaxation, and anxiety level during verbal learning and recall",
journal="Journal of abnormal psychology",
year="1969",
author="Straughan, J. H. and Dufort, W. H.",
volume="74",
number="5",
pages="621-624",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0021-843X",
doi="",
url="http://dx.doi.org/"
}