http://qiserver.ugr.es/cod/2003123.cif
http://qiserver.ugr.es/cod/2106703.cif
http://qiserver.ugr.es/cod/9005686.cif
http://qiserver.ugr.es/cod/9005708.cif
http://qiserver.ugr.es/cod/9006443.cif
http://qiserver.ugr.es/cod/9013703.cif