http://qiserver.ugr.es/cod/1509163.cif
http://qiserver.ugr.es/cod/1522407.cif
http://qiserver.ugr.es/cod/1523459.cif
http://qiserver.ugr.es/cod/1537794.cif
http://qiserver.ugr.es/cod/1537796.cif