http://qiserver.ugr.es/cod/9012648.cif
http://qiserver.ugr.es/cod/9012649.cif
http://qiserver.ugr.es/cod/9012650.cif
http://qiserver.ugr.es/cod/9012651.cif
http://qiserver.ugr.es/cod/9012652.cif
http://qiserver.ugr.es/cod/9012653.cif
http://qiserver.ugr.es/cod/9012654.cif
http://qiserver.ugr.es/cod/9014098.cif
http://qiserver.ugr.es/cod/9017418.cif