@article{ref1,
title="Test-retest reliability of the National Program for Playground Safety Report Card",
journal="International journal of injury control and safety promotion",
year="2009",
author="Xethali, Vasiliki and Christoforidis, Christos and Kambas, Antonis and Aggelousis, Nikolaos and Fatouros, Ioannis",
volume="16",
number="4",
pages="249-251",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1745-7300",
doi="10.1080/17457300903309199",
url="http://dx.doi.org/10.1080/17457300903309199"
}