http://qiserver.ugr.es/cod/9013102.cif
http://qiserver.ugr.es/cod/9013103.cif
http://qiserver.ugr.es/cod/9013104.cif
http://qiserver.ugr.es/cod/9013105.cif
http://qiserver.ugr.es/cod/9013106.cif
http://qiserver.ugr.es/cod/9013107.cif
http://qiserver.ugr.es/cod/9013108.cif