@article{ref1,
title="Robotic system safety",
journal="International journal of industrial ergonomics",
year="1991",
author="Tayyari, F and Parsaei, HR",
volume="7",
number="2",
pages="175-179",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0169-8141",
doi="",
url="http://dx.doi.org/"
}