@article{ref1,
title="Practical Methods for Measuring and Calculating the Luminance of Road Surfaces",
journal="Philips research reports",
year="1952",
author="Deboer, JB and Onate, V and Oostrijck, A",
volume="7",
number="1",
pages="54-54",
abstract="[Abstract unavailable]  <p>Language: en</p>",
language="en",
issn="0031-7918",
doi="",
url="http://dx.doi.org/"
}