http://qiserver.ugr.es/cod/1528640.cif
http://qiserver.ugr.es/cod/1528641.cif
http://qiserver.ugr.es/cod/1528642.cif
http://qiserver.ugr.es/cod/1528643.cif
http://qiserver.ugr.es/cod/1528644.cif
http://qiserver.ugr.es/cod/9009919.cif