Inheritance-Based Models of the Lexicon (together with Wiebke Petersen and Christof Rumpf ), 429-477, in: Dieter Wunderlich (ed.), Advances in the Theory of the Lexicon. Berlin/New York: Mouton de Gruyter, 2006.  pdf  

What Feature Co-occurrence Restrictions have to do with Type Signatures (together with Wiebke Petersen), 1-15, Proceedings of the Joint Conference on Formal Grammar and Mathematics of Language (FG-MoL 2005). 2005.  pdf  

Some Empirical Aspects of Verb Inflection in Bulgarian and German (together with Katina Bontcheva). Paper presented at the University of Sussex, Feb. 2005. pdf       

Inkrementelle Identifikation von Sprachvarietäten [Incremental identification of language varieties], 169-179, Jahrbuch der Heinrich-Heine-Universität 2003. Düsseldorf, 2004.  pdf  

Historical-Comparative Reconstruction and Multilingual Lexica (together with Katina Bontcheva), Proceedings of the Papillon 2004 Workshop on Multilingual Lexical Databases. Grenoble, 2004.   pdf 

An Inheritance-Based Description of Bulgarian Noun Inflection (together with Katina Bontcheva), 23-27, in: S. Piperides & V. Karkaletsis (eds.), Proceedings of the International Workshop on Balkan Language Resources and Tools. Thessaloniki, 2003.  pdf  

German Noun Inflection Revisited, Journal of Linguistics 37: 339-353, 2001.  pdf   

Incremental Identification of Inflectional Types (together with Petra Barg), 49-54, Proceedings of the 18th International Conference on Computational Linguistics, 2000 in Saarbrücken, Vol. 1. 2000.  pdf  

Realisierung paradigmenbasierter Derivationsmorphologie in finite-state Umgebungen (together with Christian Fischbach), 245-252, in: Jost Gippert & Peter Olivier (eds.), Multilinguale Corpora, Codierung, Strukturierung, Analyse. 11. Jahrestagung der Gesellschaft für linguistische Datenverarbeitung. Prag: enigma corporation, 1999.  pdf1  pdf2   

Top-Down Predictive Linking and Complex-Feature-Based Formalisms, 658-663, Proceedings of the 16th International Conference on Computational Linguistics, 1996 in Copenhagen, Vol. 2. 1996.  pdf  

Encoding Constituent Structure in Feature Structures, manuscript, University of Düsseldorf, 1996. [fully revised version of a paper from 1991]   pdf 

Strict Inheritance and the Taxonomy of Lexical Types in DATR, manuscript, University of Düsseldorf [announced 1994 for publication in a volume that never appeared]  pdf  

Simulation lexikalischen Erwerbs (together with Petra Barg [Naerger] & Ingrid Renz), 251-271, in: S. W. Felix, Chr. Habel & G. Rickheit (eds.), Kognitive Linguistik: Repräsentation und Prozesse. Opladen: Westdeutscher Verlag, 1994.  pdf  

New Lexical Entries for Unknown Words (together with Petra Naerger & Ingrid Renz), Theorie des Lexikons: Arbeiten des Sonderforschungsbereichs 282, Nr. 29. 1992. pdf   

Paradigm-Based Derivational Morphology, 159-168, in: G. Görz (ed.), Proceedings of KONVENS 92. Berlin et al.: Springer, 1992.  pdf                  

DATR as a Lexical Component für PATR (together with Petra Naerger & Ingrid Renz), 137-142, Proceedings of the 5th Conference of the European Chapter of the Association for Computational Linguistics, 1991 in Berlin. 1991.  pdf  

QPATR and Constraint Threading, 382-384, Proceedings of the 13th International Conference on Computational Linguistics, 1990 in Helsinki, Vol. 3. 1990.  pdf  

Parsing with Category Cooccurrence Restrictions, 324-327,  Proceedings of the 12th International Conference on Computational Linguistics, 1988 in Budapest. 1988. pdf   

A Proposal for  Modifications in the Formalism of GPSG, 156-159, Proceedings of the 3rd Conference of the European Chapter of the Association for Computational Linguistics, 1987 in Copenhagen. 1987.  pdf  

Category Cooccurrence Restrictions and the Elimination of Metarules, 50-55, Proceedings of the 11th International Conference on Computational Linguistics, 1986 in Bonn. 1986.  pdf    

Language Variation, Parsing, and the Modelling of Users' Language Varieties, 29-32, Proceedings of the 7th European Conference on Artificial Intelligence, 1986 in Brighton, Vol. II. 1986. pdf   

A Modification of the Earley-Shieber Algorithm for Direct Parsing of ID/LP Grammars, 39-48, in J. Laubsch (ed.): GWAI-84: 8th German Workshop on Artificial Intelligence. Heidelberg: Springer, 1985.   pdf  

Chart Parsing and the Earley Algorithm, 76-89, in U. Klenk (ed.):  Kontextfreie Syntaxen und verwandte Systeme. Vorträge eines Kolloquiums in Grand Ventron (Vogesen, Frankreich) im Oktober, 1984. Tübingen: Niemeyer, 1985. pdf   

Review of Claude Hagège, Critical Reflections on Generative Grammar.  Language Sciences 6: 385-388,  1984.  pdf  

Talking about Phonemics: Centralized Diphthongs in a Chicago-Area Idiolect, 336-341, in: F. B. Agard et al. (eds.): Essays in Honor of Charles F. Hockett. Leiden: E. J. Brill, 1983.  pdf  

The Development of Morphophonemic Theory (= Studies in the History of Linguistics, 10). Amsterdam: John Benjamins, 1976.  pdf   

Structure and Restructuring in Proto-Germanic Ablaut. Leuvense Bijdragen 64: 347-353, 1975.  pdf  

On Russian meč, Gothic meki. Orbis 23: 450‑454, 1974.  pdf    

Generative Grammatik des Altisländischen (Phonologie und Morphologie) (together with Klaus Düwel), manuscript, Göttingen, 1969.  pdf