http://qiserver.ugr.es/cod/1510799.cif
http://qiserver.ugr.es/cod/1527481.cif
http://qiserver.ugr.es/cod/1534149.cif
http://qiserver.ugr.es/cod/1536779.cif
http://qiserver.ugr.es/cod/9009266.cif