http://qiserver.ugr.es/cod/9009502.cif
http://qiserver.ugr.es/cod/9009503.cif
http://qiserver.ugr.es/cod/9009504.cif
http://qiserver.ugr.es/cod/9009505.cif
http://qiserver.ugr.es/cod/9009506.cif
http://qiserver.ugr.es/cod/9009507.cif
http://qiserver.ugr.es/cod/9009508.cif
http://qiserver.ugr.es/cod/9009509.cif
http://qiserver.ugr.es/cod/9009510.cif