# Using both BBL and BIB in one LaTeX document

I have a .bib file that contains information about some of my papers. I also have a .bbl file, automatically produced by BibTeX, that contains the compiled information (\bibitem{} series) of another set of papers.

How can I use both .bib and .bbl in one LaTeX document? If I simply use \input for the BBL, the numberings of references (and even themselves) will not be correct. A solution that let's me decompile the .bbl also works.

In this very case, using .bbl is no problem because it's in the bibliography style I am using. Also, all references in .bbl will be used in the file document.

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To make sure I understand your setup: First, you do not have access to the bib entries that were used in the creation of the existing bbl file, right? Second, are you using a numeric or an author-year citation and referencing style? –  Mico Mar 14 '12 at 0:16
No, I don't have access to the original bib file. It's IEEE style, which is numeric. –  Ali Mehrizi Mar 14 '12 at 4:32
Just got the same problem. Unfortunately, you can not get back from .bbl to .bib because .bib contains structured information while .bbl contains the generated \bibitem{} list according to specific parameters/style etc. Therefore- loss of information happens and you will not (at least in straightforward manner) get back to .bib entry. Maybe it is possible with some kind of regular expressions to reformulate the bib entries... So- for the moment, best thing I see is the one mentioned by Stephan Lehmmke in the answer. –  Vairis Oct 26 '12 at 12:55

I would forget about the bbl until the paper is just about finished, then generate a bbl from the bib one last time and merge both bbl files by hand, hand-adjusting the numbers.
The citations will be automatically correct as they refer to the \bibitem commands in the bbl.
In that case, I'm afraid the only way will be to create a bib file representing the bbl. –  Stephan Lehmke May 1 '12 at 7:06