@article{ref1,
title="Traumatic injuries to teeth of children",
journal="Journal of Preventive Dentistry",
year="1976",
author="Snawder, K. D.",
volume="3",
number="6",
pages="13-20",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0096-2732",
doi="",
url="http://dx.doi.org/"
}