@article{ref1,
title="Medical aspects of pressurized tunnel operations",
journal="Journal of Occupational Medicine",
year="1970",
author="Behnke, A. R.",
volume="12",
number="4",
pages="101-112",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0096-1736",
doi="",
url="http://dx.doi.org/"
}