http://qiserver.ugr.es/cod/2101232.cif
http://qiserver.ugr.es/cod/2232341.cif
http://qiserver.ugr.es/cod/4112377.cif
http://qiserver.ugr.es/cod/4133617.cif
http://qiserver.ugr.es/cod/4508195.cif
http://qiserver.ugr.es/cod/6000063.cif