@article{ref1,
title="Street and highway illumination",
journal="Nordisk Medicin",
year="1952",
author="Clemmesen, V. and Hansen, C. V.",
volume="48",
number="48",
pages="1673-1674",
abstract="<p>[Abstract unavailable]</p> <p>Language: un</p>",
language="un",
issn="0029-1420",
doi="",
url="http://dx.doi.org/"
}