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    • Representing and querying histories of semistructured databases using multidimensional OEM 

      Γεργατσούλης, Μανώλης; Σταύρακας, Γιάννης; Ζαφείρης, Βασίλης; Gergatsoulis, Manolis; Stavrakas, Yannis; Doulkeridis, Christos; Zafeiris, Vassilis; Δουληγέρης, Χρήστος (2004)
      Multidimensional semistructured data (MSSD) are semistructured data that present different facets under different contexts. Context represents alternative worlds, and is expressed by assigning values to a set of user-defined ...