@article{ref1,
title="On Accidents in Coal Mines in Belgium and the Provident Institutions Attached to the Mines",
journal="Journal of the Statistical Society of London",
year="1842",
author="Weld, C. r.",
volume="5",
number="3",
pages="292-300",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0959-5341",
doi="10.2307/2337932",
url="http://dx.doi.org/10.2307/2337932"
}