@article{ref1,
title="Situational and personal influences on space perception with experimental spectacles : Part one: Prolonged experiments with inverting glasses",
journal="Acta psychologica",
year="1957",
author="Kottenhoff, H",
volume="13",
number="",
pages="79-97",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0001-6918",
doi="",
url="http://dx.doi.org/"
}