http://qiserver.ugr.es/cod/1522637.cif
http://qiserver.ugr.es/cod/1522638.cif
http://qiserver.ugr.es/cod/1522932.cif
http://qiserver.ugr.es/cod/1525022.cif
http://qiserver.ugr.es/cod/1525023.cif
http://qiserver.ugr.es/cod/1537647.cif