@techreport{Guergens89,
  author = {G{\"u}rgens, Sigrid},
  institution = { TH Darmstadt },
  interhash = {3bfabcea2894561bf31661a76f54a40c},
  intrahash = {2bd089496dc4b74e9e62a8521185fff9},
  number = { 1263 },
  title = { Einfache Verklebung von Begriffsverb{\"a}nden },
  type = { FB4--Preprint },
  year = { 1989 }
}