http://qiserver.ugr.es/cod/1528711.cif
http://qiserver.ugr.es/cod/1534272.cif
http://qiserver.ugr.es/cod/1534273.cif
http://qiserver.ugr.es/cod/1534274.cif
http://qiserver.ugr.es/cod/1538465.cif
http://qiserver.ugr.es/cod/1539332.cif