r2b-journal-abbrevs

r2b-journal-abbrevs is a variable defined in `refbib.el'.
Its value is

nil

Documentation:
Abbreviation list for journal names.
If the car of an element matches a journal name exactly, it is replaced by
the cadr when output. Braces must be included if replacement is a
{string}, but not if replacement is a bibtex abbreviation. The cadr
may be eliminated if is exactly the same as the car.
Because titles are capitalized before matching, the abbreviation
for the journal name should be listed as beginning with a capital
letter, even if it really doesn't.
For example, a value of '(("Aij" "{Artificial Intelligence}")
("Ijcai81" "ijcai7")) would expand Aij to the text string
"Artificial Intelligence", but would replace Ijcai81 with the
BibTeX macro "ijcai7".

You can customize this variable.