@techreport{2003-Proper-LanguageEvolution,
  author		= "{Proper}, H.A. (Erik) and {Hoppenbrouwers}, S.J.B.A. (Stijn)",
  title			= "{Information System Evolution as Language Evolution}",
  number		= "NIII--R0205",
  institution		= "Institute for Information and Computing Sciences, Radboud University Nijmegen",
  year			= "2002",
  code			= "icis.NIII-R0205",
  research_group	= "iris",
  class			= "Report"
}