@article{ref1,
title="IV Later Middle Ages (1200–1500)",
journal="Annual bulletin of historical literature",
year="2007",
author="Schofield, Phillipp R. and Stöber, Karen",
volume="91",
number="1",
pages="35-52",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0066-3832",
doi="10.1111/j.1467-8314.2007.00187.x",
url="http://dx.doi.org/10.1111/j.1467-8314.2007.00187.x"
}