@article{ref1,
title="The North Sleswic Question. A Forty Years' War",
journal="American journal of sociology",
year="1902",
author="Warming, Louis",
volume="8",
number="3",
pages="289-335",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/211138",
url="http://dx.doi.org/10.1086/211138"
}