@article{ref1,
title="Mechanics of the human middle ear. Pressure regulation in aviation and diving. A non-traumatic method",
journal="Acta oto-laryngologica",
year="1967",
author="Ingelstedt, S. and Ivarsson,  and Jonson, B.",
volume="",
number="",
pages="Suppl 228:1-58",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-6489",
doi="",
url="http://dx.doi.org/"
}