http://qiserver.ugr.es/cod/1523076.cif
http://qiserver.ugr.es/cod/1523442.cif
http://qiserver.ugr.es/cod/1524361.cif
http://qiserver.ugr.es/cod/1525458.cif
http://qiserver.ugr.es/cod/1525459.cif
http://qiserver.ugr.es/cod/1539314.cif