@article{ref1,
title="The difficulty of testing redundancy systems (validation of a reactor containment system)",
journal="Reliability engineering",
year="1985",
author="Witt, Howard H.",
volume="13",
number="3",
pages="185-189",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0143-8174",
doi="10.1016/0143-8174(85)90096-4",
url="http://dx.doi.org/10.1016/0143-8174(85)90096-4"
}