http://qiserver.ugr.es/cod/1008070.cif
http://qiserver.ugr.es/cod/1527335.cif
http://qiserver.ugr.es/cod/1529578.cif
http://qiserver.ugr.es/cod/1529579.cif
http://qiserver.ugr.es/cod/1529580.cif
http://qiserver.ugr.es/cod/1530705.cif
http://qiserver.ugr.es/cod/9012127.cif