http://qiserver.ugr.es/cod/1004038.cif
http://qiserver.ugr.es/cod/2021882.cif
http://qiserver.ugr.es/cod/2021883.cif
http://qiserver.ugr.es/cod/2105324.cif
http://qiserver.ugr.es/cod/2105325.cif
http://qiserver.ugr.es/cod/4119410.cif
http://qiserver.ugr.es/cod/4349442.cif
http://qiserver.ugr.es/cod/9015116.cif