@InBook{rc2007-omega,
  x-fixme =                  {BIBTeX ne veut pas editor ET author, mais moi si},
  genre =                    {chapitreDeLivre},
  author =                   {Delahaye, Jean-Paul},
  editor =                   {Calude, Cristian S},
  title =                    {Randomness and Complexity, From Chaitin To Leibniz},
  chapter =                  {20. Omega Numbers},
  publisher =                {World Scientific},
  year =                     {2007},
  pages =                    {343-358},
  isbn =                     {978-981-277-082-0},
  url =                      {http://www.worldscibooks.com/compsci/6577.html},
  abstract =                 {No abstract}
}