Subgrammars, Rule Classes and Control in the Rosetta Translation System Lisette Appelo author Carel Fellinger author Jan Landsbergen author 1987-04 text Third Conference of the European Chapter of the Association for Computational Linguistics Bente Maegaard editor Association for Computational Linguistics Copenhagen, Denmark conference publication appelo-etal-1987-subgrammars https://aclanthology.org/E87-1022/ 1987-04