1. Aydin, S., Bordihn, H.: Sequential versus parallel grammar formalisms with respect to measures of descriptional complexity. Fundam. Inf. 55, 243–254 (2003)
2. Bordihn, H.: Über den Determiniertheitsgrad reiner Versionen formaler Sprachen. Ph.D. thesis, Technische Universität “Otto von Guericke” Magdeburg (1992)
3. Bordihn, H.: On the degree of nondeterminism. In: Dassow, J., Kelemenova, A. (eds.) Developments in Theoretical Computer Science, pp. 133–140. Gordon and Breach Science Publishers, Philadelphia (1994)
4. Joshi, A.: Tree adjoining grammars: how much context-sensitivity is required to provide reasonable structural descriptions? In: Dowty, D., Karttunen, L., Zwicky, A. (eds.) Natural Language Parsing, pp. 206–250. Cambridge University Press, Cambridge (1985)
5. Joshi, A., Levi, L.S., Takahashi, M.: Tree adjunct grammars. J. Comput. Syst. Sci. 10, 136–163 (1975)