http://qiserver.ugr.es/cod/1524273.cif
http://qiserver.ugr.es/cod/1525383.cif
http://qiserver.ugr.es/cod/1525384.cif
http://qiserver.ugr.es/cod/1534018.cif
http://qiserver.ugr.es/cod/1539960.cif