@techreport{Hasan89,
  author	= {Hasan, Ruqaiya},
  year		= {1989},
  title		= {The representation of meaning in the systemic functional model},
  note		= {Paper presented at the 16th. International Systemic Congress, Helsinki, Finland},
  address	= {Sydney, Australia},
  institution	= {Department of Linguistics, Macquarie University}
}