@ARTICLE{kybartas-14-analysis,
  author =       {Ben Kybartas and Clark Verbrugge},
  journal =      {IEEE Transactions on Computational Intelligence and AI in Games},
  title =        {Analysis of {ReGEN} as a Graph-Rewriting System for Quest Generation},
  year =         2014,
  month =        {June},
  volume =       6,
  number =       2,
  pages =        {228-242},
  doi =          {10.1109/TCIAIG.2013.2290088},
  ISSN =         {1943-068X}
}