http://qiserver.ugr.es/cod/1509745.cif
http://qiserver.ugr.es/cod/1509893.cif
http://qiserver.ugr.es/cod/1510001.cif
http://qiserver.ugr.es/cod/1511222.cif
http://qiserver.ugr.es/cod/1520967.cif
http://qiserver.ugr.es/cod/1520969.cif
http://qiserver.ugr.es/cod/1525920.cif
http://qiserver.ugr.es/cod/1540166.cif
http://qiserver.ugr.es/cod/5000076.cif