http://qiserver.ugr.es/cod/9012438.cif
http://qiserver.ugr.es/cod/9012439.cif
http://qiserver.ugr.es/cod/9012440.cif
http://qiserver.ugr.es/cod/9012441.cif
http://qiserver.ugr.es/cod/9012442.cif
http://qiserver.ugr.es/cod/9012443.cif
http://qiserver.ugr.es/cod/9012444.cif
http://qiserver.ugr.es/cod/9012445.cif
http://qiserver.ugr.es/cod/9012446.cif