@article{ref1,
title="Adjustable face vehicular traffic control signal heads",
journal="ITE journal",
year="1979",
author="",
volume="49",
number="2",
pages="41-47",
abstract="The purpose of the standard described is to provide a guide for the preparation of minimum purchase specifications for adjustable face vehicle traffic control signal heads. This standard represents the minimum requirements for the equipment described and is not intended to impose restrictions upon designs or materials which conform to the purpose and intent of this standard.<p />",
language="",
issn="0162-8178",
doi="",
url="http://dx.doi.org/"
}