http://qiserver.ugr.es/cod/1521209.cif
http://qiserver.ugr.es/cod/1521210.cif
http://qiserver.ugr.es/cod/1521211.cif
http://qiserver.ugr.es/cod/1521359.cif
http://qiserver.ugr.es/cod/1521360.cif
http://qiserver.ugr.es/cod/1521764.cif
http://qiserver.ugr.es/cod/1522108.cif
http://qiserver.ugr.es/cod/1522322.cif
http://qiserver.ugr.es/cod/6000231.cif
http://qiserver.ugr.es/cod/6000232.cif