http://qiserver.ugr.es/cod/1525243.cif
http://qiserver.ugr.es/cod/1525329.cif
http://qiserver.ugr.es/cod/1525453.cif
http://qiserver.ugr.es/cod/1525454.cif
http://qiserver.ugr.es/cod/1535077.cif
http://qiserver.ugr.es/cod/2002174.cif
http://qiserver.ugr.es/cod/2002175.cif