http://qiserver.ugr.es/cod/1529480.cif
http://qiserver.ugr.es/cod/1529499.cif
http://qiserver.ugr.es/cod/1529500.cif
http://qiserver.ugr.es/cod/1540575.cif
http://qiserver.ugr.es/cod/1540576.cif
http://qiserver.ugr.es/cod/1540577.cif
http://qiserver.ugr.es/cod/1540578.cif