@article{ref1,
title="Man in extreme circumstances: where are the limits?",
journal="Nederlands Tijdschrift voor Geneeskunde",
year="1986",
author="Zijlstra, W. G.",
volume="130",
number="38",
pages="1710-1712",
abstract="<p>[Abstract unavailable]</p><p>Language: nl</p>",
language="nl",
issn="0028-2162",
doi="",
url="http://dx.doi.org/"
}