@article{ref1,
title="Some physiological aspects of fitness for sport and work",
journal="Proceedings of the Royal Society of Medicine",
year="1969",
author="Asmussen, E.",
volume="62",
number="11 Part 2",
pages="1160-1164",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0035-9157",
doi="",
url="http://dx.doi.org/"
}