@article{ref1,
title="Probing the adaptive significance of children's behavior and relationships in the school context: a child by environment perspective",
journal="Advances in child development and behavior",
year="2003",
author="Ladd, Gary W.",
volume="31",
number="",
pages="43-104",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0065-2407",
doi="",
url="http://dx.doi.org/"
}