| Universität Koblenz-Landau, Institut für Informatik |
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| Universität Konstanz, FB Informationswissenschaft |
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| Université de Franche-Comté |
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| University of Liverpool, University of Manchester |
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| Working notes of a tutorial at the 10th European Summer School in Logic, Language and Information |
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| *No Publisher/Institution |
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| {FU Hagen, Informatik Bericht 146} -- 10/1993 |
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