The .bib
file format is used to describe bibliographical references. When used together with LaTeX and BibTeX, it generates a file with the .bbl
extension, which is really just a tex
file with a different extension containing your references formatted according to the bibliography style chosen in your .tex
file through the \bibligraphystyle{}
command. LaTeX then automatically inserts the contents of the bbl
file in the exact place you call the \bibliography{}
command in your document.
Usually, when working with TeX documents, journal and conference editors don't want to go to the trouble of using BibTeX to compile your paper; they prefer to defer the responsibility of sending the bibliography correctly formatted to the paper author (you). So, they tell you to manually do what pdflatex
and bibtex
automate for you: to get the contents of the bbl
file and put them where you would call the \bibliography{}
command. This way, you only have to send them a single tex
file, instead of the tex
file along with the bib
file.