diff --git a/ddl.dic b/ddl.dic
index 82c0138..8f2a398 100644
--- a/ddl.dic
+++ b/ddl.dic
@@ -2552,7 +2552,10 @@ save_
                                    '_dictionary_audit.version'
                                    '_dictionary_audit.date'
                                    '_dictionary_audit.revision'
-                                   '_dictionary.doi']
+                                   '_dictionary.doi'
+                                   '_dictionary_author.name'
+                                   '_dictionary_author.id_orcid'
+                                   '_dictionary_author.email']
          Dictionary  Prohibited   [ALIAS  CATEGORY_KEY  DEFINITION
                                    DESCRIPTION_EXAMPLE  ENUMERATION  IMPORT
                                    METHOD  NAME  TYPE  UNITS]
@@ -3123,4 +3126,7 @@ save_
        the lower bound are not allowed.
 
        Changed _dictionary.namespace attribute from 'DdlDic' to 'DDLm'.
+
+       Added '_dictionary_author.name', '_dictionary_author.id_orcid' and
+       '_dictionary_author.email' to the recommended attribute list.
 ;