http://qiserver.ugr.es/cod/1534180.cif
http://qiserver.ugr.es/cod/1534181.cif
http://qiserver.ugr.es/cod/1534182.cif
http://qiserver.ugr.es/cod/1538314.cif
http://qiserver.ugr.es/cod/1538315.cif
http://qiserver.ugr.es/cod/1538317.cif