<?xml version="1.0"?>
<coauthors author="Carlos Astengo-Noguez" urlpt="a/Astengo=Noguez:Carlos">
<author urlpt="g/G=oacute=mez:Jos=eacute=_Ram=oacute=n_Calzada" count="1">Jos&#233; Ram&#243;n Calzada G&#243;mez</author>
<author urlpt="s/S=aacute=nchez=Ante:Gildardo" count="1">Gildardo S&#225;nchez-Ante</author>
</coauthors>

