@article{ref1,
title="An account, how adits and mines are wrought at Liege without air-shafts, communicated by Sir Robert Moray",
journal="Philosophical transactions of the Royal Society of London (1665)",
year="1665",
author="Moray, Robert",
volume="1",
number="5",
pages="79-82",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0370-2316",
doi="",
url="http://dx.doi.org/"
}