http://qiserver.ugr.es/cod/1509447.cif
http://qiserver.ugr.es/cod/1510221.cif
http://qiserver.ugr.es/cod/1528040.cif
http://qiserver.ugr.es/cod/1528041.cif
http://qiserver.ugr.es/cod/1528042.cif
http://qiserver.ugr.es/cod/2002243.cif