@article{ref1,
title="Investigation of visual acuity of drivers",
journal="British medical journal: BMJ",
year="1960",
author="Wilkie, D. J.",
volume="1",
number="5174",
pages="722-723",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}