@incollection{ganter87algorithmen,
  address = { Mannheim },
  author = {Ganter, Bernhard},
  booktitle = { Beitr{\"a}ge zur Begriffsanalyse },
  editor = {Ganter, B. and Wille, R. and Wolff, K. E.},
  interhash = {9774f54b5e5334ed781618385ded2e75},
  intrahash = {683ce6dfe15a7c4efe529891527581dd},
  pages = { 241-254 },
  publisher = { B.I.--Wissenschaftsverlag },
  title = { Algorithmen zur Formalen Begriffsanalyse },
  year = { 1987 }
}