http://qiserver.ugr.es/cod/1534467.cif
http://qiserver.ugr.es/cod/1534470.cif
http://qiserver.ugr.es/cod/1534473.cif
http://qiserver.ugr.es/cod/1535172.cif
http://qiserver.ugr.es/cod/1535175.cif
http://qiserver.ugr.es/cod/1536603.cif