1. Alferes, J.J., Damasio, C.V., Pereira, L.M.: Semantic Web Logic Programming Tools. In: Bry, F., Henze, N., Maluszynski, J. (eds.) Principles and Practice of Semantic Web Reasoning, pp. 16–32. Springer, Heidelberg (2003)
2. Cheung, W., Liu, J., Tsang, K., Wong, H.: Goal-Directed Service Flow Planning Using Metaknowledge on Services. In: Proc. Second International Workshop on Knowledge Grid and Grid Intelligence, Beijing, China, pp. 123–130 (2004)
3. Clark, J.: XSL Transformations (XSLT) Version 1.0,
http://www.w3.org/TR/xslt
4. Fencel, F., Motta, E., van Harmelen, F., Benjamins, V.R., Crubezy, M., Decker, S., Gaspari, M., Groenboom, R., Grosso, W., Musen, M., Plaza, E., Schreiber, G., Studer, R., Wielinga, B.: The Unified Problem-Solving Method Development Language UPML. Knowledge and Information Systems 5, 83–131 (2003)
5. Foster, I., Kesselman, C.: The Grid 2: Blueprint for a New Computing Infrastructure. Morgan Kaufmann, San Francisco (2004)