@article{ref1,
title="100 years Port Health Authority in Hamburg",
journal="Bulletin of the Institute of Maritime and Tropical Medicine in Gdynia",
year="1992",
author="Ebert, H.",
volume="43",
number="1-4",
pages="5-11",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0324-8542",
doi="",
url="http://dx.doi.org/"
}