@article{ref1,
title="Confusing Traffic Signals",
journal="Science",
year="1925",
author="Atkins, HA",
volume="61",
number="",
pages="442-444",
abstract="[Abstract unavailable]  <p>Language: en</p>",
language="en",
issn="0036-8075",
doi="",
url="http://dx.doi.org/"
}