The script re-orders references in the .tex file (in the order as they appear in the text). This is REQUIRED by most of the journals, this is TEDIOUS to do manually (in average each article contains ~50 citations) and unfortunately none of the LateXs which I know can do this job. The script is written in Perl (pre-installed on most Linux OS), but can be easily rewritten in other languages.
Orderer – Order references in a TeX file
Orderer is a small Perl script that will take a TeX document and re-order the references in it. This saves the user from building a BibTeX database.
The LaTeX Project Public License|
support for manually-written bibliographies|