http://qiserver.ugr.es/cod/1529171.cif
http://qiserver.ugr.es/cod/1533414.cif
http://qiserver.ugr.es/cod/1533491.cif
http://qiserver.ugr.es/cod/1533943.cif
http://qiserver.ugr.es/cod/1533994.cif