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Eklund, P.; Groh, B.; Stumme, G.; Wille, R.: ¬A conceptual-logic extension of TOSCANA (2000)
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Eklund. P.W.: Logic-based networks : concept graphs and conceptual structures (2000)
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Burmeister, P.; Holzer, R.: On the treatment of incomplete knowledge in formal concept analysis (2000)
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Ganter, B.: Computing with conceptual structures (2000)
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Carpineto, C.; Romano, G.: Order-theoretical ranking (2000)
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