http://qiserver.ugr.es/cod/1001740.cif
http://qiserver.ugr.es/cod/1004132.cif
http://qiserver.ugr.es/cod/9009766.cif
http://qiserver.ugr.es/cod/9009767.cif
http://qiserver.ugr.es/cod/9009768.cif
http://qiserver.ugr.es/cod/9009769.cif
http://qiserver.ugr.es/cod/9009770.cif
http://qiserver.ugr.es/cod/9009771.cif