http://qiserver.ugr.es/cod/1509295.cif
http://qiserver.ugr.es/cod/1527612.cif
http://qiserver.ugr.es/cod/1527613.cif
http://qiserver.ugr.es/cod/1540291.cif
http://qiserver.ugr.es/cod/1540292.cif
http://qiserver.ugr.es/cod/1540294.cif
http://qiserver.ugr.es/cod/1540296.cif