Extended Spelling Correction for German Ralf Kese author Friedrich Dudda author Gerhard Heyer author Marianne Kugler author 1992-03 text Third Conference on Applied Natural Language Processing Association for Computational Linguistics Trento, Italy conference publication kese-etal-1992-extended 10.3115/974499.974521 https://aclanthology.org/A92-1017/ 1992-03 126 132