http://qiserver.ugr.es/cod/1511132.cif
http://qiserver.ugr.es/cod/1511146.cif
http://qiserver.ugr.es/cod/1511160.cif
http://qiserver.ugr.es/cod/1523889.cif
http://qiserver.ugr.es/cod/1523890.cif
http://qiserver.ugr.es/cod/1527564.cif
http://qiserver.ugr.es/cod/1527703.cif
http://qiserver.ugr.es/cod/1527791.cif
http://qiserver.ugr.es/cod/1527813.cif