@article{ref1,
title="On gas engines, with description of the Simplex engine",
journal="Proceedings of the institution of mechanical engineers",
year="1889",
author="Delamare-Deboutteville, Edouard",
volume="40",
number="1",
pages="500-541",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0020-3483",
doi="10.1243/PIME_PROC_1889_040_024_02",
url="http://dx.doi.org/10.1243/PIME_PROC_1889_040_024_02"
}