@article{ref1,
title="The estimation of vehicular velocity as a function of visual stimulation",
journal="Human factors",
year="1968",
author="Salvatore, S.",
volume="10",
number="1",
pages="27-31",
abstract="Abstract unavailable.",
language="",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}