http://qiserver.ugr.es/cod/1535098.cif
http://qiserver.ugr.es/cod/1535515.cif
http://qiserver.ugr.es/cod/1535519.cif
http://qiserver.ugr.es/cod/1539145.cif
http://qiserver.ugr.es/cod/1539365.cif