@article{ref1,
title="Toward a measurement of depressive symptoms",
journal="International psychiatry clinics",
year="1969",
author="Blaser, P. and Gehring, A. and Poeldinger, W. J.",
volume="6",
number="2",
pages="27-52",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0020-8426",
doi="",
url="http://dx.doi.org/"
}