http://qiserver.ugr.es/cod/1514019.cif
http://qiserver.ugr.es/cod/1514026.cif
http://qiserver.ugr.es/cod/1514027.cif
http://qiserver.ugr.es/cod/1521169.cif
http://qiserver.ugr.es/cod/1522061.cif
http://qiserver.ugr.es/cod/1522062.cif