@article{ref1,
title="Birth order and physiological stress response",
journal="Child development",
year="1970",
author="Weiss, J. H.",
volume="41",
number="2",
pages="461-470",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0009-3920",
doi="",
url="http://dx.doi.org/"
}