@article{ref1,
title="Preparing for life: the critical transition of adolescence",
journal="Crisis",
year="1989",
author="Hamburg, D.",
volume="10",
number="1",
pages="4-15",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0227-5910",
doi="",
url="http://dx.doi.org/"
}