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3. Itoh, S., Ogawa, H., Sonoda, T., Sekiguchi, S.: GridASP: An ASP Framework for Grid Utility Computing (2005), http://www.teragrid.org/programs/sci_gateways/docs/gridasp-ogawa.pdf
4. BIG Faculty of Computer Science, University of Viena (2005), Web site http://www.cs.univie.ac.at/project.php?pid=79
5. GridASP (2007), Web site http://www.gridasp.org/en/