@article{ref1,
title="Enhancement of occipito-cortical responses to light flashes in man during attention",
journal="Vision research",
year="1966",
author="van Hof, M. W. and Hof van Duin J van,  and Rietveld, W. J.",
volume="6",
number="1",
pages="109-111",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0042-6989",
doi="",
url="http://dx.doi.org/"
}