http://qiserver.ugr.es/cod/1510475.cif
http://qiserver.ugr.es/cod/1511749.cif
http://qiserver.ugr.es/cod/1523124.cif
http://qiserver.ugr.es/cod/1525512.cif
http://qiserver.ugr.es/cod/1530825.cif
http://qiserver.ugr.es/cod/1540242.cif