http://qiserver.ugr.es/cod/4124622.cif
http://qiserver.ugr.es/cod/4124623.cif
http://qiserver.ugr.es/cod/4124660.cif
http://qiserver.ugr.es/cod/4124661.cif
http://qiserver.ugr.es/cod/4124662.cif
http://qiserver.ugr.es/cod/9012309.cif
http://qiserver.ugr.es/cod/9012310.cif