@article{ref1,
title="Aggressive withdrawn behavior of children in first-grade and social maladjustment at adolescence",
journal="Aggressive behavior",
year="1987",
author="Tremblay, Richard E. and Schwartzman, Alex and LeBlanc, M.",
volume="13",
number="5",
pages="289-289",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0096-140X",
doi="",
url="http://dx.doi.org/"
}