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B. Dolin, M. Arenas, and J. Guervos. Parallel Problem Solving from Nature - PPSN VII, 2439, page 142--152. Granada, Spain, Springer-Verlag, (7-11 September 2002)
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J. Pérez, M. Arenas, and C. Gutierrez. International Semantic Web Conference, volume 5318 of Lecture Notes in Computer Science, page 66-81. Springer, (2008)
M. Arenas, W. Fan, and L. Libkin. Proceedings of the 13th International Conference on Database and Expert Systems Applications (DEXA 2002), volume 2453 of Lecture Notes in Computer Science, page 269-278. Aix-en-Provence, France, Springer-Verlag, (September 2002)
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A. Kementsietsidis, M. Arenas, and R. Miller. Proceedings of the 19th International Conference on Data
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