@article{ref1,
title="On motorboat driving license regulation",
journal="Klinische Monatsblätter für Augenheilkunde (1963)",
year="1967",
author="Gramberg-Danielsen, B.",
volume="151",
number="1",
pages="119-122",
abstract="Abstract unavailable.",
language="",
issn="0023-2165",
doi="",
url="http://dx.doi.org/"
}