@inproceedings{NanardNanard91,
  author	= {Nanard, J. and Nanard, M.},
  year		= {1991},
  title		= {Using structured types to incorporate knowledge in hypertext},
  booktitle	= {Proceedings of the 3rd ACM Conference on Hypertext (Hypertext '91)},
  pages		= {329--343},
  publisher	= {Association for Computing Machinery},
  address	= {San Antonio, Texas},
}