@article{ref1,
title="Oxygen toxicity studies in underwater swimming",
journal="Journal of applied physiology (APS DC)",
year="1956",
author="Schaefer, K. E.",
volume="8",
number="5",
pages="524-531",
abstract="<p>[Abstract unavailable]  Keywords: Drowning; Drowning Prevention; Water Safety </p> <p>Language: en</p>",
language="en",
issn="0021-8987",
doi="",
url="http://dx.doi.org/"
}