http://qiserver.ugr.es/cod/1001469.cif
http://qiserver.ugr.es/cod/1509412.cif
http://qiserver.ugr.es/cod/1521493.cif
http://qiserver.ugr.es/cod/1522350.cif
http://qiserver.ugr.es/cod/1526609.cif
http://qiserver.ugr.es/cod/1531675.cif
http://qiserver.ugr.es/cod/1540860.cif
http://qiserver.ugr.es/cod/1541250.cif