http://qiserver.ugr.es/cod/1513995.cif
http://qiserver.ugr.es/cod/1524246.cif
http://qiserver.ugr.es/cod/1530271.cif
http://qiserver.ugr.es/cod/1539229.cif
http://qiserver.ugr.es/cod/1540913.cif
http://qiserver.ugr.es/cod/1541452.cif
http://qiserver.ugr.es/cod/1541454.cif
http://qiserver.ugr.es/cod/1541456.cif
http://qiserver.ugr.es/cod/6000300.cif