http://qiserver.ugr.es/cod/1537153.cif
http://qiserver.ugr.es/cod/1537157.cif
http://qiserver.ugr.es/cod/1537161.cif
http://qiserver.ugr.es/cod/1537165.cif
http://qiserver.ugr.es/cod/1537208.cif