@article{ref1,
title="Thumbs up: anthropometry of the first digit",
journal="Human factors",
year="1988",
author="Gilbert, B. G. and Hahn, H. A. and Gilmore, W. E. and Schurman, D. L.",
volume="30",
number="6",
pages="747-750",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}