http://qiserver.ugr.es/cod/1523623.cif
http://qiserver.ugr.es/cod/1523625.cif
http://qiserver.ugr.es/cod/1523626.cif
http://qiserver.ugr.es/cod/1523644.cif
http://qiserver.ugr.es/cod/1523645.cif
http://qiserver.ugr.es/cod/1524365.cif
http://qiserver.ugr.es/cod/1524366.cif
http://qiserver.ugr.es/cod/1538011.cif