@article{ref1,
title="Effect of visual display scale on duration estimates",
journal="Human factors",
year="1986",
author="Bobko, D. J. and Bobko, P. and Davis, M. A.",
volume="28",
number="2",
pages="153-158",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}