@article{ref1,
title="The photochromatic eyeglasses of the motorist",
journal="Fortschritte der Medizin",
year="1980",
author="Gramberg-Danielsen, B.",
volume="98",
number="43",
pages="1697-1698",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0015-8178",
doi="",
url="http://dx.doi.org/"
}