http://qiserver.ugr.es/cod/1008690.cif
http://qiserver.ugr.es/cod/1008691.cif
http://qiserver.ugr.es/cod/1528027.cif
http://qiserver.ugr.es/cod/1528268.cif
http://qiserver.ugr.es/cod/1540989.cif