http://qiserver.ugr.es/cod/1510785.cif
http://qiserver.ugr.es/cod/1511601.cif
http://qiserver.ugr.es/cod/1524080.cif
http://qiserver.ugr.es/cod/1524447.cif
http://qiserver.ugr.es/cod/1524857.cif