http://qiserver.ugr.es/cod/1544869.cif
http://qiserver.ugr.es/cod/1544870.cif
http://qiserver.ugr.es/cod/9014341.cif
http://qiserver.ugr.es/cod/9014622.cif
http://qiserver.ugr.es/cod/9014848.cif
http://qiserver.ugr.es/cod/9015826.cif
http://qiserver.ugr.es/cod/9016258.cif