-AtomPerson * atom_entry_person (AtomEntry *);
-void atom_entry_person_set (AtomEntry *, AtomPerson *);
+time_t atom_entry_updated (AtomEntry *);
+void atom_entry_updated_set (AtomEntry *, time_t);
+void atom_entry_authors (AtomEntry *, AtomPerson ***, size_t *);
+void atom_entry_author_add (AtomEntry *, AtomPerson *);
+void atom_entry_categories (AtomEntry *, AtomCategory ***, size_t *);
+void atom_entry_category_add (AtomEntry *, AtomCategory *);