@article{ref1,
title="Supplement to notes on the early history of railway gauge, respecting the origin of the 4 ft. 8 1/2 in. gauge",
journal="Proceedings of the institution of mechanical engineers",
year="1877",
author="",
volume="28",
number="1",
pages="158-163",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0020-3483",
doi="10.1243/PIME_PROC_1877_028_012_02",
url="http://dx.doi.org/10.1243/PIME_PROC_1877_028_012_02"
}