http://qiserver.ugr.es/cod/9000123.cif
http://qiserver.ugr.es/cod/9000124.cif
http://qiserver.ugr.es/cod/9000125.cif
http://qiserver.ugr.es/cod/9000129.cif
http://qiserver.ugr.es/cod/9014060.cif
http://qiserver.ugr.es/cod/9014290.cif
http://qiserver.ugr.es/cod/9015986.cif