@article{ref1,
title="How is Society Possible?",
journal="American journal of sociology",
year="1910",
author="Simmel, Georg",
volume="16",
number="3",
pages="372-391",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/211904",
url="http://dx.doi.org/10.1086/211904"
}