@article{ref1,
title="A definition of "feasible" relative to industrial hygiene engineering controls",
journal="American Industrial Hygiene Association journal",
year="1978",
author="Caplan, K. J.",
volume="39",
number="12",
pages="A33-40",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0002-8894",
doi="",
url="http://dx.doi.org/"
}