@unpublished{ReiterRobertson99-rags,
  author	= {Reiter, Ehud and Robertson, Roma},
  title		= {The Architecture of the STOP System},
  note		= {In Proceedings of the Workshop on Reference Architectures for Natural Language Generation. Edinburgh, Scotland. Available at \tt http://www.itri.bton.ac.uk/projects/rags},
  year		= {1999}
}