@article{ref1,
title="On the ability of monitoring non-veridical perceptions and uncertain knowledge: some calibration studies",
journal="Acta psychologica",
year="1988",
author="Keren, G.",
volume="67",
number="2",
pages="95-119",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-6918",
doi="",
url="http://dx.doi.org/"
}