http://qiserver.ugr.es/cod/1509325.cif
http://qiserver.ugr.es/cod/1509326.cif
http://qiserver.ugr.es/cod/1510140.cif
http://qiserver.ugr.es/cod/1510141.cif
http://qiserver.ugr.es/cod/1510144.cif
http://qiserver.ugr.es/cod/1527379.cif
http://qiserver.ugr.es/cod/2002257.cif
http://qiserver.ugr.es/cod/2002258.cif
http://qiserver.ugr.es/cod/2002280.cif