http://qiserver.ugr.es/cod/1100088.cif
http://qiserver.ugr.es/cod/1522849.cif
http://qiserver.ugr.es/cod/1527895.cif
http://qiserver.ugr.es/cod/1539273.cif
http://qiserver.ugr.es/cod/1539275.cif
http://qiserver.ugr.es/cod/9015528.cif