@article{ref1,
title="Color coding for information location",
journal="Human factors",
year="1971",
author="Shontz, W. D. and Trumm, G. A. and Williams, L. G.",
volume="13",
number="3",
pages="237-246",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}