http://qiserver.ugr.es/cod/2310239.cif
http://qiserver.ugr.es/cod/2310293.cif
http://qiserver.ugr.es/cod/2310295.cif
http://qiserver.ugr.es/cod/2310957.cif
http://qiserver.ugr.es/cod/2310995.cif
http://qiserver.ugr.es/cod/2311059.cif
http://qiserver.ugr.es/cod/2311060.cif