@article{ref1,
title="An investigation on morale",
journal="Aeromedica acta",
year="1957",
author="Rhemrev, N. A.",
volume="",
number="Spec Edition",
pages="235-237",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0568-0549",
doi="",
url="http://dx.doi.org/"
}