@article{ref1,
title="Freeway-style diagrammatic signs in new jersey",
journal="Transportation research record",
year="1975",
author="Jagannath, M. V. and Reilly, E. F. and Roberts, A. W.",
volume="531",
number="",
pages="36-47",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0361-1981",
doi="",
url="http://dx.doi.org/"
}