@article{ref1,
title="Acquired chromatoasthenopia and chromatoanopia in automobile drivers",
journal="Klinische Monatsblätter für Augenheilkunde (1963)",
year="1971",
author="Witusik, W.",
volume="159",
number="5",
pages="689-692",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0023-2165",
doi="",
url="http://dx.doi.org/"
}