Variable: bibtex-comma-after-last-field
bibtex-comma-after-last-field is a customizable variable defined in
bibtex.el.gz.
Value
nil
Documentation
If non-nil, a comma is put at end of last field in the entry template.
Probably introduced at or before Emacs version 20.1.
Source Code
;; Defined in /usr/src/emacs/lisp/textmodes/bibtex.el.gz
(defcustom bibtex-comma-after-last-field nil
"If non-nil, a comma is put at end of last field in the entry template."
:group 'bibtex
:type 'boolean)