@article{ref1,
title="The study of acute occupational hazards of repairing rail and roadbed working in single-track railway tunnel",
journal="Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi",
year="2014",
author="Wang, Lei",
volume="32",
number="8",
pages="590-592",
abstract="<p>[Abstract unavailable]</p> <p>Language: zh</p>",
language="zh",
issn="1001-9391",
doi="",
url="http://dx.doi.org/"
}