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Archive for Mathematical Logic > 2011 > 50 > 7-8 > 727-742
Annals of Mathematics and Artificial Intelligence > 2005 > 44 > 1-2 > 1-34
Archive for Mathematical Logic > 2011 > 50 > 7-8 > 727-742
Annals of Mathematics and Artificial Intelligence > 2005 > 44 > 1-2 > 1-34