http://qiserver.ugr.es/cod/1548449.cif
http://qiserver.ugr.es/cod/1548526.cif
http://qiserver.ugr.es/cod/1548580.cif
http://qiserver.ugr.es/cod/1548691.cif
http://qiserver.ugr.es/cod/1548713.cif
http://qiserver.ugr.es/cod/1548714.cif
http://qiserver.ugr.es/cod/1548715.cif