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  1.  13
    Many‐Valued Modal Propositional Calculi.Pascal Ostermann - 1988 - Mathematical Logic Quarterly 34 (4):343-354.
  2.  21
    Many-Valued Modal Propositional Calculi.Pascal Ostermann - 1988 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 34 (4):343-354.
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  3.  7
    Many‐valued modal logics: Uses and predicate calculus.Pascal Ostermann - 1990 - Mathematical Logic Quarterly 36 (4):367-376.
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  4.  24
    Many-valued modal logics: Uses and predicate calculus.Pascal Ostermann - 1990 - Zeitschrift fur mathematische Logik und Grundlagen der Mathematik 36 (4):367-376.
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