http://qiserver.ugr.es/cod/1509624.cif
http://qiserver.ugr.es/cod/1509950.cif
http://qiserver.ugr.es/cod/1510000.cif
http://qiserver.ugr.es/cod/1525228.cif
http://qiserver.ugr.es/cod/1529937.cif
http://qiserver.ugr.es/cod/1529938.cif
http://qiserver.ugr.es/cod/1530166.cif