http://qiserver.ugr.es/cod/1511279.cif
http://qiserver.ugr.es/cod/1524096.cif
http://qiserver.ugr.es/cod/1534597.cif
http://qiserver.ugr.es/cod/1535459.cif
http://qiserver.ugr.es/cod/1535992.cif
http://qiserver.ugr.es/cod/9012888.cif