@phdthesis{lyndathesis,
  author	= {Hardman, Lynda},
  note		= {ISBN: 90-74795-93-5, also available at http://www.cwi.nl/$\sim$lynda/thesis/},
  school	= {University of Amsterdam},
  URL		= {http://www.cwi.nl/$~$lynda/thesis/},
  urlpage	= {http://www.cwi.nl/$~$lynda/thesis/},
  title		= {Modelling and Authoring Hypermedia Documents},
  year		= {1998}
}