@inproceedings{1990-Bruza-2LevelHypermedia,
  author		= "Bruza, P.D. and Weide, Th.P. van der",
  title			= "{Two Level Hypermedia -- An Improved Architecture for Hypertext}",
  booktitle		= "{Proceedings of the Data Base and Expert System Applications Conference (DEXA 90), Vienna, Austria, EU, Berlin, Germany, EU}",
  editor		= "Tjoa, A.M. and Wagner, R.R.",
  publisher		= "Springer",
  year			= "1990",
  isbn			= "ISBN 3211822348",
  code			= "basvg.003",
  research_group	= "iris",
  pages			= "76--83",
  class			= "Conference"
}