http://qiserver.ugr.es/cod/7109246.cif
http://qiserver.ugr.es/cod/7109247.cif
http://qiserver.ugr.es/cod/7117771.cif
http://qiserver.ugr.es/cod/7117793.cif
http://qiserver.ugr.es/cod/7117910.cif