1. [1] Abrahamson, K.R., Dadoun, N., Kirkpatrick, D.G. and Przytycka, T.M.: A Simple Parallel Tree Contraction Algorithm, J. Algorithms, Vol.10, No.2, pp.287-302 (1989).
2. [2] Blelloch, G.E., Hardwick, J.C., Sipelstein, J., Zagha, M. and Chatterjee, S.: Implementation of a Portable Nested Data-Parallel Language, J. Parallel Distrib. Comput., Vol.21, No.1, pp.4-14 (1994).
3. [3] Boehm, H.-J. and Zwaenepoel, W.: Parallel Attribute Grammar Evaluation, Proc. 7th International Conference on Distributed Computing Systems, Berlin, Germany, September 1987, IEEE Computer Society Press, pp.347-355 (1987).
4. [4] Brent, R.P.: The Parallel Evaluation of General Arithmetic Expressions, J. ACM, Vol.21, No.2, pp.201-206 (1974).
5. [5] Engelfriet, J. and Vogler, H.: Macro Tree Transducers, J. Comput. Syst. Sci., Vol.31, No.1, pp.71-146 (1985).