bibtex-dialect is a variable defined in `bibtex.el'.
Its value is

  • This variable is safe as a file local variable if its value
    satisfies the predicate `symbolp'.

Current BibTeX dialect. For allowed values see `bibtex-dialect-list'.
To interactively change the dialect use the command `bibtex-set-dialect'.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 24.1 of Emacs.