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### 4.4 Chapterbib and Bibunits

`chapterbib` and `bibunits` are two LaTeX packages which produce multiple bibliographies in a document. This is no problem for RefTeX as long as all bibliographies use the same BibTeX database files. If they do not, it is best to have each document part in a separate file (as it is required for `chapterbib` anyway). Then RefTeX will still scan the locally relevant databases correctly. If you have multiple bibliographies within a single file, this may or may not be the case.