http://qiserver.ugr.es/cod/1509285.cif
http://qiserver.ugr.es/cod/1509449.cif
http://qiserver.ugr.es/cod/1522875.cif
http://qiserver.ugr.es/cod/1525238.cif
http://qiserver.ugr.es/cod/1528555.cif
http://qiserver.ugr.es/cod/1528562.cif
http://qiserver.ugr.es/cod/1528563.cif
http://qiserver.ugr.es/cod/1529000.cif