http://qiserver.ugr.es/cod/2310013.cif
http://qiserver.ugr.es/cod/2310015.cif
http://qiserver.ugr.es/cod/2310148.cif
http://qiserver.ugr.es/cod/2310852.cif
http://qiserver.ugr.es/cod/2310873.cif
http://qiserver.ugr.es/cod/2310874.cif
http://qiserver.ugr.es/cod/9007425.cif