1. J. Allen. Understanding Natural Language. 1987.
2. J. Allgayer and A. Fabri. Efficient maintenance of set relationships in
SB-ONE
+. Memo, Univ. des Saarlandes, 1989.
3. J. Allgayer. L
SB-ONE+: Die Zugangssprache zu
SB-ONE
+. Memo, Univ. des Saarlandes, 1989.
4. J. Allgayer, R. M. Jansen-Winkeln, C. Reddig and N. Reithinger. Bidirectional Use of Knowledge in the Multi-Modal Natural-Language Access System XTRA. In: Proceedings of the 11th International Joint Conference on Artificial Intelligence, Detroit, USA, 1989.
5. D. Appelt. Reference and Pragmatic Identification. In: Proc. of the TINLAP-3, pp. 128–132, 1987.