http://qiserver.ugr.es/cod/1509105.cif
http://qiserver.ugr.es/cod/1509562.cif
http://qiserver.ugr.es/cod/1523638.cif
http://qiserver.ugr.es/cod/1538056.cif
http://qiserver.ugr.es/cod/1538061.cif
http://qiserver.ugr.es/cod/1539775.cif