@unpublished{RAGS-intro-01,
  author	= {Cahill, Lynne and Evans, Roger and Mellis, Chris and Paiva, Daniel and Reape, Mike and Scott, Donia},
  title		= {Introduction to the RAGS architecture},
  institution	= {Information Technology Research Institute (ITRI), University of Brighton},
  year		= {2001},
  note		= {Available at: http://www.itri.brighton.ac.uk/projects/rags}
}