bibtex-preamble-prefix

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

"[ 	]*\\(@[ 	]*Preamble\\)[ 	]*[({][ 	
]*"

• This variable may be risky if used as a file-local variable.

Documentation:
Regexp matching the prefix part of a BibTeX Preamble entry.