http://qiserver.ugr.es/cod/9009862.cif
http://qiserver.ugr.es/cod/9009863.cif
http://qiserver.ugr.es/cod/9009864.cif
http://qiserver.ugr.es/cod/9009865.cif
http://qiserver.ugr.es/cod/9009866.cif
http://qiserver.ugr.es/cod/9012423.cif
http://qiserver.ugr.es/cod/9012424.cif
http://qiserver.ugr.es/cod/9012425.cif