http://qiserver.ugr.es/cod/1534817.cif
http://qiserver.ugr.es/cod/1540256.cif
http://qiserver.ugr.es/cod/1540326.cif
http://qiserver.ugr.es/cod/1540955.cif
http://qiserver.ugr.es/cod/1540956.cif
http://qiserver.ugr.es/cod/1540957.cif
http://qiserver.ugr.es/cod/1540958.cif
http://qiserver.ugr.es/cod/2002419.cif
http://qiserver.ugr.es/cod/2002420.cif
http://qiserver.ugr.es/cod/2002421.cif