@article{ref1,
title="Sociological Research in Adolescence",
journal="American journal of sociology",
year="1936",
author="",
volume="42",
number="1",
pages="81-94",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/217332",
url="http://dx.doi.org/10.1086/217332"
}