@article{ref1,
title="Blue questionnaires and blue mood",
journal="Perceptual and motor skills",
year="1995",
author="Herbst, A. and Lester, David",
volume="81",
number="2",
pages="514-514",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0031-5125",
doi="",
url="http://dx.doi.org/"
}