@article{ref1,
title="The information content of a vernier judgment",
journal="Kybernetik",
year="1972",
author="Foley-Fisher, J. A.",
volume="11",
number="3",
pages="175-177",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0023-5946",
doi="",
url="http://dx.doi.org/"
}