@article{ref1,
title="Human tolerance to He, Ne, and N2 at respiratory gas densities equivalent to He-O2 breathing at depths to 1200, 2000, 3000, 4000, and 5000 feet of sea water (predictive studies III)",
journal="Aviation, space, and environmental medicine",
year="1977",
author="Lambertsen, C. J. and Gelfand, R. and Peterson, R. and Strauss, R. and Wright, W. B. and Dickson, J. G. and Puglia, C. and Hamilton, R. W.",
volume="48",
number="9",
pages="843-853",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0095-6562",
doi="",
url="http://dx.doi.org/"
}