@phdthesis{Vis97.thesis,
  author   = {Visser, Eelco},
  title    = {Syntax Definition for Language Prototyping},
  year     = {1997},
  month    = {September},
  school   = {University of Amsterdam},
  url      = {http://www.cs.uu.nl/groups/ST/twiki/bin/view/Visser/SyntaxDefinitionForLanguagePrototyping},
  urlpsgz  = {http://www.cs.uu.nl/people/visser/ftp/Vis97.ps.gz},
  pubcat   = {phdthesis},
  project  = {ASF+SDF and SDF},
  category = {key and refereed},
}