@article{ref1,
title="Psychological risk factors for sleep disturbances in a northern Finnish cohort of first and second born children",
journal="Arctic medical research",
year="1988",
author="Seitamo, L.",
volume="47",
number="Suppl 1",
pages="542-544",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0782-226X",
doi="",
url="http://dx.doi.org/"
}