http://qiserver.ugr.es/cod/1522029.cif
http://qiserver.ugr.es/cod/1527229.cif
http://qiserver.ugr.es/cod/1534255.cif
http://qiserver.ugr.es/cod/1534256.cif
http://qiserver.ugr.es/cod/1534257.cif
http://qiserver.ugr.es/cod/1534258.cif
http://qiserver.ugr.es/cod/1534522.cif
http://qiserver.ugr.es/cod/1544388.cif