@article{ref1,
title="Efficient performance under inefficient conditions",
journal="Quintessenz journal",
year="1975",
author="Alexander, G.",
volume="5",
number="7",
pages="21-25",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0033-6599",
doi="",
url="http://dx.doi.org/"
}