http://qiserver.ugr.es/cod/1522194.cif
http://qiserver.ugr.es/cod/1522196.cif
http://qiserver.ugr.es/cod/1523805.cif
http://qiserver.ugr.es/cod/1524479.cif
http://qiserver.ugr.es/cod/1525239.cif
http://qiserver.ugr.es/cod/1525240.cif
http://qiserver.ugr.es/cod/2002231.cif