@article{Hudson73,
  author	= {Hudson, Richard A.},
  year		= {1973},
  title		= {An item-and-paradigm approach to Beja syntax and morphology},
  journal	= {Foundations of Language},
  volume	= {9},
  pages		= {504--548},
  note		= {Reprinted in Michael A.K. Halliday and James R. Martin (eds.)(1981) \em Readings in Systemic Linguistics, London, Batsford}
}