http://qiserver.ugr.es/cod/1001750.cif
http://qiserver.ugr.es/cod/1001751.cif
http://qiserver.ugr.es/cod/1004094.cif
http://qiserver.ugr.es/cod/1004095.cif
http://qiserver.ugr.es/cod/1004096.cif
http://qiserver.ugr.es/cod/1008570.cif
http://qiserver.ugr.es/cod/1008571.cif
http://qiserver.ugr.es/cod/1008650.cif
http://qiserver.ugr.es/cod/1537872.cif