@article{ref1,
title="Safety, liability dictate efficient snow removal",
journal="Health facilities management",
year="1991",
author="Walker, C.",
volume="4",
number="1",
pages="38, 40, 42-38, 40, 42",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0899-6210",
doi="",
url="http://dx.doi.org/"
}