http://qiserver.ugr.es/cod/1530597.cif
http://qiserver.ugr.es/cod/1530598.cif
http://qiserver.ugr.es/cod/1530839.cif
http://qiserver.ugr.es/cod/1536625.cif
http://qiserver.ugr.es/cod/1541544.cif