http://qiserver.ugr.es/cod/1001376.cif
http://qiserver.ugr.es/cod/1509073.cif
http://qiserver.ugr.es/cod/1509074.cif
http://qiserver.ugr.es/cod/1509075.cif
http://qiserver.ugr.es/cod/1525121.cif
http://qiserver.ugr.es/cod/1537889.cif