http://qiserver.ugr.es/cod/1511387.cif
http://qiserver.ugr.es/cod/1511405.cif
http://qiserver.ugr.es/cod/1521320.cif
http://qiserver.ugr.es/cod/1521321.cif
http://qiserver.ugr.es/cod/1521825.cif
http://qiserver.ugr.es/cod/1522309.cif