http://qiserver.ugr.es/cod/1509392.cif
http://qiserver.ugr.es/cod/1529587.cif
http://qiserver.ugr.es/cod/1529681.cif
http://qiserver.ugr.es/cod/1529763.cif
http://qiserver.ugr.es/cod/1529764.cif
http://qiserver.ugr.es/cod/1530419.cif