http://qiserver.ugr.es/cod/1508975.cif
http://qiserver.ugr.es/cod/1508982.cif
http://qiserver.ugr.es/cod/1508988.cif
http://qiserver.ugr.es/cod/1508989.cif
http://qiserver.ugr.es/cod/1523650.cif
http://qiserver.ugr.es/cod/1523651.cif
http://qiserver.ugr.es/cod/1524144.cif
http://qiserver.ugr.es/cod/1524389.cif