@article{ref1,
title="Frequency spectrum analysis of speech changes during open sea habitat and hyperbaric chamber dives",
journal="Aerospace medicine",
year="1974",
author="Maitland, G. and Thomas, J. R.",
volume="45",
number="8",
pages="855-859",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}