http://qiserver.ugr.es/cod/1522613.cif
http://qiserver.ugr.es/cod/1539265.cif
http://qiserver.ugr.es/cod/1539268.cif
http://qiserver.ugr.es/cod/1539272.cif
http://qiserver.ugr.es/cod/1542244.cif
http://qiserver.ugr.es/cod/1542245.cif