@article{ref1,
title="Health factors involved in working under conditions of heat stress. Report of a WHO Scientific Group",
journal="World Health Organization technical report series",
year="1969",
author="",
volume="412",
number="",
pages="1-32",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0512-3054",
doi="",
url="http://dx.doi.org/"
}