@article{ref1,
title="Injurious effects of unpaved yards",
journal="Public health",
year="1903",
author="Berry, W",
volume="15",
number="",
pages="41-47",
abstract="[Abstract unavailable]  <p>Language: en</p>",
language="en",
issn="0033-3506",
doi="",
url="http://dx.doi.org/"
}