http://qiserver.ugr.es/cod/2300111.cif
http://qiserver.ugr.es/cod/2300112.cif
http://qiserver.ugr.es/cod/2300113.cif
http://qiserver.ugr.es/cod/2300114.cif
http://qiserver.ugr.es/cod/2300115.cif
http://qiserver.ugr.es/cod/2300116.cif
http://qiserver.ugr.es/cod/2300117.cif
http://qiserver.ugr.es/cod/2300118.cif
http://qiserver.ugr.es/cod/9015142.cif