@TechReport{xsq3-tr,
  author =       {Feng Peng and Sudarshan S. Chawathe},
  title =        {Optimal Buffering for Streaming {XPath} Evaluation},
  institution =  {Computer Science Department, University of Maryland},
  year =         2004,
  number =       {CS-TR-4561},
  address =      {College Park, Maryland},
  month =        jan,
  annote =       {Also UMIACS-TR-2004-06.}
}