@article{ref1,
title="Pulmonary oxygen toxicity in man at 2 ATA with intermittent air breathing",
journal="Aerospace medicine",
year="1974",
author="Widell, P. J. and Bennett, P. B. and Kivlin, P. and Gray, W.",
volume="45",
number="4",
pages="407-410",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}