@article{ref1,
title="Realities of frost damages in railway tunnels and prevention of icicle formation by adiabatic treatment",
journal="Japanese railway engineering",
year="1987",
author="Okada, K.",
volume="27",
number="2",
pages="5-9",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0448-8938",
doi="",
url="http://dx.doi.org/"
}