@article{ref1,
title="Governing of steam engines by throttling and by variable expansion",
journal="Proceedings of the institution of mechanical engineers",
year="1895",
author="Sankey, H. Riall",
volume="48",
number="1",
pages="154-237",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0020-3483",
doi="10.1243/PIME_PROC_1895_048_013_02",
url="http://dx.doi.org/10.1243/PIME_PROC_1895_048_013_02"
}