=== How can subsequent occurences of the same author replaced by a fixed term/symbol? ===

Some citation styles require to replace any subsequent occurences of the same author/bookauthor/editor by [[http://en.wikipedia.org/wiki/Idem|idem/eadem]], their abbreviations id./ead., or some other term or symbol like a dash.

a) It may be that you need such replacements //within the bibliography//, e.g.
   Doe, Johnson & Williams. 2001.
   --- & Smith. 2002.
   Doe, Stevens & Miller. 2003.
   ---, --- & ---. 2004.

This is **possible** and just depends on the citation style you use. (If you want to use it in your own citation style, see [[https://docs.citationstyles.org/en/stable/specification.html#reference-grouping|subsequent-author-subsitute rules in CSL]].)

b) It may be that you need such replacements //within one reference//, for example for a work in an anthology (collected or selected work), e.g.
   DOE, JOHN (1998): Article. In: IDEM (ed).: Book.

This is currently not possible, but as a **workaround** you can enter here in Zotero "IDEM" as the book author or editor, which will give you the desired result.

c) It may also be that you need such //replacements for subsequent citations// of the same author but different books, e.g.

   V. HUGO, Les Mis¨¦rables, Livre de poche, 2002, p. 127.
   ID., La L¨¦gende des si¨¨cles, Hatier, 1998, p. 45.

This is currently not possible, but as a **workaround** you can suppress the author here and add "ID., " manually.


Main thread for this issue: https://forums.zotero.org/discussion/4785/check-for-identical-authoreditor/


{{tag>kb styles}}