@article{ref1,
title="The African bee",
journal="Gaceta Medica de Mexico",
year="1991",
author="",
volume="127",
number="5",
pages="423-425",
abstract="<p>[Abstract unavailable]</p> <p>Language: es</p>",
language="es",
issn="0016-3813",
doi="",
url="http://dx.doi.org/"
}