@article{ref1,
title="Toward safer, exciting playground environments",
journal="Young children",
year="1991",
author="Mccracken, JB",
volume="46",
number="6",
pages="26-26",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0044-0728",
doi="",
url="http://dx.doi.org/"
}