@article{ref1,
title="Cybernetic television methods applied to feedback analysis of automobile safety",
journal="Nature",
year="1969",
author="Kao, H. S. and Smith, K. U.",
volume="222",
number="5190",
pages="299-300",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-0836",
doi="",
url="http://dx.doi.org/"
}