In: C. Kirchner (Hrsg.). 5th International Conference of the Rewriting Techniques and Applications (RTA '93), June 16-18. International Conference on Rewriting Techniques and Applications (RTA-93), 5th, June 16-18, Montreal, QC, Canada, Pages 121-135, LNCS, No. 690, Springer, 1993.
In: 31st Annual Meeting of the Association for Computational Linguistics. Annual Meeting of the Association for Computational Linguistics (ACL), 31st, June 22-26, Ohio State University Columbus, Ohio, USA, Pages 201-208, Association for Computational Linguistics, 1993.
In: Gregor Erbach; Mark van der Kraan; Suresh Manandhar; M. Andrew Moshier; Herbert Ruessink; Craig Thiersch; Henry Thompson (Hrsg.). The Reusability of Grammatical Resources. Deliverable A: Selection of Datatypes. Edinburgh, 1993.