Announcements for bibtex
bibtex – Process bibliographies (bib files) for LaTeX or other formats
BibTeX allows the user to store his citation data in generic form, while printing citations in a document in the form specified by a BibTeX style, to be specified in the document itself (one often needs a LaTeX citation-style package, such as natbib, as well).
BibTeX knows nothing about Unicode sorting algorithms or scripts, although it will pass on whatever bytes it reads. Its descendant bibtexu does support Unicode, via the ICU library. The older alternative bibtex8 supports 8-bit character sets.