@article{ref1,
title="Visual acuity and fitness for motor vehicle driving",
journal="Klinische Monatsblätter für Augenheilkunde (1963)",
year="1963",
author="Heinsius, E.",
volume="143",
number="",
pages="429-437",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0023-2165",
doi="",
url="http://dx.doi.org/"
}