@article{ref1,
title="The psychology of valuation",
journal="International journal of psychology",
year="1992",
author="Kahneman, Daniel",
volume="27",
number="3-4",
pages="1-2",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0020-7594",
doi="",
url="http://dx.doi.org/"
}