@article{ref1,
title="Loneliness and dissatisfaction in a blue collar population",
journal="Archives of general psychiatry",
year="1974",
author="Siassi, I. and Crocetti, G. and Spiro, H. R.",
volume="30",
number="2",
pages="261-265",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-990X",
doi="",
url="http://dx.doi.org/"
}