@article{ref1,
title="Modifying snow shoveling behaviors in an urban area",
journal="American journal of public health",
year="1981",
author="Jason, Leonard A.",
volume="71",
number="8",
pages="861-861",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-0036",
doi="",
url="http://dx.doi.org/"
}