http://qiserver.ugr.es/cod/1525736.cif
http://qiserver.ugr.es/cod/1525738.cif
http://qiserver.ugr.es/cod/1526125.cif
http://qiserver.ugr.es/cod/1526815.cif
http://qiserver.ugr.es/cod/1526817.cif