http://qiserver.ugr.es/cod/1509205.cif
http://qiserver.ugr.es/cod/1509339.cif
http://qiserver.ugr.es/cod/1524301.cif
http://qiserver.ugr.es/cod/1524807.cif
http://qiserver.ugr.es/cod/1538628.cif