@article{ref1,
title="The hazard due to inward leakage of gas into a full face mask",
journal="Annals of occupational hygiene",
year="1970",
author="Griffin, O. G. and Longson, D. J.",
volume="13",
number="2",
pages="147-151",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-4878",
doi="",
url="http://dx.doi.org/"
}