http://qiserver.ugr.es/cod/9009607.cif
http://qiserver.ugr.es/cod/9009608.cif
http://qiserver.ugr.es/cod/9009609.cif
http://qiserver.ugr.es/cod/9009610.cif
http://qiserver.ugr.es/cod/9009611.cif
http://qiserver.ugr.es/cod/9009612.cif
http://qiserver.ugr.es/cod/9009613.cif