@article{ref1,
title="Evaluation of open waters for bathing purposes",
journal="Schriftenreihe des Vereins für Wasser-, Boden- und Lufthygiene",
year="1975",
author="Althaus, H. and Bewig, F.",
volume="",
number="43",
pages="45-58",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0300-8665",
doi="",
url="http://dx.doi.org/"
}