http://qiserver.ugr.es/cod/1530402.cif
http://qiserver.ugr.es/cod/1540757.cif
http://qiserver.ugr.es/cod/2106064.cif
http://qiserver.ugr.es/cod/2310269.cif
http://qiserver.ugr.es/cod/2310921.cif
http://qiserver.ugr.es/cod/4001798.cif
http://qiserver.ugr.es/cod/9000985.cif