@article{ref1,
title="Assaying and isolating individual differences in searching a hierarchical file system",
journal="Human factors",
year="1987",
author="Vicente, K. J. and Hayes, B. C. and Williges, R. C.",
volume="29",
number="3",
pages="349-359",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}