@mastersthesis{Rindfrey88,
  author = {Rindfrey, K.},
  interhash = {762f901290e238da9b3ed6334e991e69},
  intrahash = {2b273b40375ba11e318a89b8fcd4cafd},
  school = { TH Darmstadt },
  title = { Endliche, einstellige Algebren (S,f)
      untersucht mit Methoden der Formalen Begriffsanalyse},
  year = { 1988 }
}