http://qiserver.ugr.es/cod/2300511.cif
http://qiserver.ugr.es/cod/2300512.cif
http://qiserver.ugr.es/cod/9009660.cif
http://qiserver.ugr.es/cod/9009661.cif
http://qiserver.ugr.es/cod/9009662.cif
http://qiserver.ugr.es/cod/9009663.cif
http://qiserver.ugr.es/cod/9009664.cif
http://qiserver.ugr.es/cod/9009665.cif
http://qiserver.ugr.es/cod/9009666.cif