@article{ref1,
title="Duplicate reports of child maltreatment: a research note",
journal="Child abuse and neglect",
year="1989",
author="Knudsen, D. D.",
volume="13",
number="1",
pages="41-43",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0145-2134",
doi="",
url="http://dx.doi.org/"
}