fix-bib.rb

require 'rubygems'
require 'bibtex'


b = BibTeX.open('./Sources_3_3_1.bib')

b.each { |citation|
     
  if(citation.type != "comment" and ! citation.key.match(/^BR3/) )
    citation.key = "BR3-#{citation.key}"
  end
  
  

}


b.save_to("./Sources_3_3_1_fixed.bib")

fix-lyx.rb

match = "CommandInset citation"
endcmd = "\\end_inset"
flag = false;

File.open("3.3.1.lyx").each { |line|
  flag = true if  line.include?(match)
  
  if(flag and line.include?("key \"")) 
      flag = false;
      key = line.scan(/"[^"]*"/)
      neo_key =  key[0].gsub("\"","")
      puts  "key \"BR3-#{neo_key}\""
  else
    puts line
  end
  flag = false if line.include? endcmd

}