http://qiserver.ugr.es/cod/4331414.cif
http://qiserver.ugr.es/cod/4343555.cif
http://qiserver.ugr.es/cod/4343584.cif
http://qiserver.ugr.es/cod/4343630.cif
http://qiserver.ugr.es/cod/4343686.cif
http://qiserver.ugr.es/cod/4343695.cif
http://qiserver.ugr.es/cod/4344138.cif
http://qiserver.ugr.es/cod/4344263.cif