http://qiserver.ugr.es/cod/1530320.cif
http://qiserver.ugr.es/cod/1530321.cif
http://qiserver.ugr.es/cod/1530322.cif
http://qiserver.ugr.es/cod/1530323.cif
http://qiserver.ugr.es/cod/1530324.cif
http://qiserver.ugr.es/cod/1541091.cif