@article{ref1,
title="Perception, past experience and the "impossible experiment"",
journal="Acta psychologica",
year="1969",
author="Kanizsa, G.",
volume="31",
number="1",
pages="66-96",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-6918",
doi="",
url="http://dx.doi.org/"
}