http://qiserver.ugr.es/cod/1533268.cif
http://qiserver.ugr.es/cod/1533482.cif
http://qiserver.ugr.es/cod/1533486.cif
http://qiserver.ugr.es/cod/1533490.cif
http://qiserver.ugr.es/cod/1533494.cif
http://qiserver.ugr.es/cod/1533497.cif
http://qiserver.ugr.es/cod/1533500.cif