http://qiserver.ugr.es/cod/9013143.cif
http://qiserver.ugr.es/cod/9014438.cif
http://qiserver.ugr.es/cod/9014626.cif
http://qiserver.ugr.es/cod/9014802.cif
http://qiserver.ugr.es/cod/9015129.cif
http://qiserver.ugr.es/cod/9016129.cif
http://qiserver.ugr.es/cod/9017467.cif
http://qiserver.ugr.es/cod/9017468.cif