http://qiserver.ugr.es/cod/1530317.cif
http://qiserver.ugr.es/cod/1530318.cif
http://qiserver.ugr.es/cod/1530319.cif
http://qiserver.ugr.es/cod/1530914.cif
http://qiserver.ugr.es/cod/1539260.cif
http://qiserver.ugr.es/cod/1542226.cif