@article{ref1,
title="Design principles of reactor protection instrument systems. ORNL-NSIC-51",
journal="ORNL-NSIC reports : U.S. Atomic Energy Commission",
year="1968",
author="Hanauer, S. H. and Walker, C. S.",
volume="",
number="",
pages="1-95",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="",
doi="",
url="http://dx.doi.org/"
}