http://qiserver.ugr.es/cod/4343634.cif
http://qiserver.ugr.es/cod/4343685.cif
http://qiserver.ugr.es/cod/4344190.cif
http://qiserver.ugr.es/cod/4344913.cif
http://qiserver.ugr.es/cod/9012502.cif
http://qiserver.ugr.es/cod/9012503.cif
http://qiserver.ugr.es/cod/9012504.cif