@article{ref1,
title="Opto-haptic illusions",
journal="Activitas nervosa superior",
year="1989",
author="Vanura, J.",
volume="31",
number="2",
pages="102-103",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0001-7604",
doi="",
url="http://dx.doi.org/"
}