http://qiserver.ugr.es/cod/1535313.cif
http://qiserver.ugr.es/cod/1535316.cif
http://qiserver.ugr.es/cod/1536096.cif
http://qiserver.ugr.es/cod/1536439.cif
http://qiserver.ugr.es/cod/1536441.cif
http://qiserver.ugr.es/cod/1536445.cif
http://qiserver.ugr.es/cod/1536449.cif
http://qiserver.ugr.es/cod/1536833.cif