@article{ref1,
title="A bad case of warped railroad track",
journal="Scientific American",
year="1904",
author="",
volume="90",
number="22",
pages="421-421",
abstract="A brief discussion of temperature-change-related distortions of the linearity of railway tracks.<p /><p>Language: en</p>",
language="en",
issn="0036-8733",
doi="",
url="http://dx.doi.org/"
}