Knowledge Representation and Semantics in a Complex Domain: The UNIX Natural Language Help System GOETHE Gerhard Heyer author Ralf Kese author Frank Oemig author Friedrich Dudda author 1990 text COLING 1990 Volume 3: Papers presented to the 13th International Conference on Computational Linguistics conference publication heyer-etal-1990-knowledge https://aclanthology.org/C90-3073/ 1990