http://qiserver.ugr.es/cod/9009999.cif
http://qiserver.ugr.es/cod/9010000.cif
http://qiserver.ugr.es/cod/9010001.cif
http://qiserver.ugr.es/cod/9010002.cif
http://qiserver.ugr.es/cod/9010003.cif
http://qiserver.ugr.es/cod/9010004.cif
http://qiserver.ugr.es/cod/9012754.cif
http://qiserver.ugr.es/cod/9012755.cif