1. Chiang, D., Scheffler, T.: Flexible composition and delayed tree-locality. In: TAG+9 Proceedings of the Ninth International Workshop on Tree-Adjoining Grammar and Related Formalisms (TAG+9), Tübingen, pp. 17–24, June 2008
2. Engelfriet, J., Schmidt, E.M.: IO and OI. J. Comput. Syst. Sci. 15(3), 328–353 (1977)
3. Gómez-Rodríguez, C., Kuhlmann, M., Satta, G.: Efficient parsing of well-nested linear context-free rewriting systems. In: Human Language Technologies: The 2010 Annual Conference of the North American Chapter of the Association for Computational Linguistics, Los Angeles, California, June 2010, pp. 276–284. Association for Computational Linguistics (2010). http://www.aclweb.org/anthology/N10-1035
4. Joshi, A.K.: 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, New York (1985)
5. Joshi, A.K., Schabes, Y.: Tree-adjoning grammars. In: Rozenberg, G., Salomaa, A. (eds.) Handbook of Formal Languages, pp. 69–123. Springer, heidelberg (1997)