@article{ref1,
title="Variations in psychomotor efficiency during prolonged stay at high altitude",
journal="Ergonomics",
year="1975",
author="Sharma, V. M. and Malhotra, M. S. and Baskaran, A. S.",
volume="18",
number="5",
pages="511-516",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0014-0139",
doi="",
url="http://dx.doi.org/"
}