1. Bradley, N.: The XML Companion. Addison Wesley, Reading (1998)
2. Cockett, R., Fukushima, T.: About Charity. Yellow Series Report No. 92/480/18, Department of Computer Science, University of Calgary (June 1992)
3. Carle, A., Pollock, L.: On the Optimality of Change Propagation for Incremental Evaluation of Hierarchical Attribute Grammars. ACM Transactions on Programming Languages and Systems 18(1), 16–29 (1996)
4. de Moor, O., Backhouse, K., Swierstra, D.: 1st-Class Attribute Grammars. In: Parigot, D., Mernik, M. (eds.) 3rd Workshop on Attribute Grammars and their Applications,WAGA 1999, Ponte de Lima, Portugal, July 2000, pp. 1–20 (2000) INRIA Rocquencourt
5. Lecture Notes in Computer Science;O. Moor de,1999