References
Gerd Stumme
(2004). Iceberg query lattices for datalog. In K. E. Wolff, H. D. Pfeiffer, & H. Delugach (Eds.). Conceptual structures at work (pp. 109-125). Dordrecht: Springer.
(2004). Iceberg query lattices for datalog. In K. E. Wolff, H. D. Pfeiffer, & H. Delugach (Eds.). Conceptual structures at work (pp. 109-125). Dordrecht: Springer.