@article{ref1,
title="Eyeglasses for aphakic persons with regard to automobile traffic",
journal="Klinische Monatsblätter für Augenheilkunde (1963)",
year="1960",
author="Gramberg-Danielsen, B.",
volume="137",
number="",
pages="640-644",
abstract="Abstract unavailable.",
language="",
issn="0023-2165",
doi="",
url="http://dx.doi.org/"
}