http://qiserver.ugr.es/cod/1001516.cif
http://qiserver.ugr.es/cod/2002561.cif
http://qiserver.ugr.es/cod/2002590.cif
http://qiserver.ugr.es/cod/2002591.cif
http://qiserver.ugr.es/cod/2002592.cif
http://qiserver.ugr.es/cod/2002593.cif
http://qiserver.ugr.es/cod/2002594.cif
http://qiserver.ugr.es/cod/2002595.cif
http://qiserver.ugr.es/cod/2002596.cif